{"title":"Power Transmission • Rotary Motion • Pulleys • V-Type Pulleys","description":"","products":[{"product_id":"p-1439307","title":"V-Type Pulley 5mm Bore 22mm Outer Dia Single Groove Aluminum Alloy","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 4-5mm PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612192690425,"sku":"a23062800ux0554","price":8.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0554_ux_g03.jpg?v=1751538966"},{"product_id":"p-1439308","title":"V-Type Pulley 7mm Bore 41mm Outer Dia Single Groove Aluminum Alloy for 3-5MM PU Round Belt Motor Shaft Drilling Machine","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 3-5mm PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612192887033,"sku":"a23062800ux0563","price":11.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0563_ux_g03.jpg?v=1751538979"},{"product_id":"p-1439309","title":"V-Type Pulley 8mm Bore 41mm Outer Dia Single Groove Aluminum Alloy for 3-5MM PU Round Belt Motor Shaft Drilling Machine","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 3-5mm PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612193018105,"sku":"a23062800ux0564","price":11.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0564_ux_g03.jpg?v=1751538990"},{"product_id":"p-1439310","title":"V-Type Pulley 7mm Bore 31mm Outer Dia Single Groove Aluminum Alloy","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 4-5MM PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612193149177,"sku":"a23062800ux0560","price":8.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0560_ux_g03.jpg?v=1774605893"},{"product_id":"p-1439311","title":"V-Type Pulley 6mm Bore 41mm Outer Dia Single Groove Aluminum Alloy","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 4-5MM PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612193280249,"sku":"a23062800ux0562","price":11.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0562_ux_g03.jpg?v=1751539013"},{"product_id":"p-1439312","title":"V-Type Pulley 5mm Bore 31mm Outer Dia Single Groove Aluminum Alloy","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 4-5MM PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612193444089,"sku":"a23062800ux0558","price":8.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0558_ux_g03.jpg?v=1751539025"},{"product_id":"p-1439313","title":"V-Type Pulley 8mm Bore 50mm Outer Dia Single Groove Aluminum Alloy","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 4-5MM PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612194197753,"sku":"a23062800ux0567","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0567_ux_g03.jpg?v=1751539037"},{"product_id":"p-1439314","title":"V-Type Pulley 8mm Bore 22mm Outer Dia Single Groove Aluminum Alloy","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 4-5MM PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612194394361,"sku":"a23062800ux0557","price":8.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0557_ux_g03.jpg?v=1751539048"},{"product_id":"p-1439315","title":"V-Type Pulley 7mm Bore 22mm Outer Dia Single Groove Aluminum Alloy for 3-5MM PU Round Belt Motor Shaft Drilling Machine","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 3-5mm PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612194492665,"sku":"a23062800ux0556","price":8.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0556_ux_g03.jpg?v=1751539060"},{"product_id":"p-1439316","title":"V-Type Pulley 6mm Bore 31mm Outer Dia Single Groove Aluminum Alloy","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 4-5MM PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612194590969,"sku":"a23062800ux0559","price":8.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0559_ux_g03.jpg?v=1777289901"},{"product_id":"p-1439317","title":"V-Type Pulley 8mm Bore 31mm Outer Dia Single Groove Aluminum Alloy","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 4-5MM PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612197507321,"sku":"a23062800ux0561","price":8.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0561_ux_g03.jpg?v=1751539084"},{"product_id":"p-1439318","title":"V-Type Pulley 12mm Bore 41mm Outer Dia Single Groove Aluminum Alloy","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 4-5MM PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612197638393,"sku":"a23062800ux0566","price":10.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0566_ux_g03.jpg?v=1751539095"},{"product_id":"p-1439319","title":"V-Type Pulley 10mm Bore 50mm Outer Dia Single Groove Aluminum Alloy","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 4-5MM PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612197769465,"sku":"a23062800ux0568","price":12.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0568_ux_g03.jpg?v=1751539109"},{"product_id":"p-1439320","title":"V-Type Pulley 6mm Bore 22mm Outer Dia Single Groove Aluminum Alloy for 3-5MM PU Round Belt Motor Shaft Drilling Machine","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 3-5mm PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612197900537,"sku":"a23062800ux0555","price":8.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0555_ux_g03.jpg?v=1751539121"},{"product_id":"p-1439322","title":"V-Type Pulley 10mm Bore 41mm Outer Dia Single Groove Aluminum Alloy","description":"\u003col\u003e\n\u003cli\u003eThe V-Type single groove motor pulley is made of aluminum alloy, with small precision error, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eThe V-shaped Single Groove pulley is suitable for 4-5MM PU round belts, 90° top screw fastening design, can adapt to a wide range of round optical axes, single flat shaft, 90° double D axis, 180° double D axis, suitable for DIY small drilling machines, Milling machines, small unpowered spindles of machine tools, can also be used for most fitness equipment.\u003c\/li\u003e\n\u003cli\u003eThis series of pulleys can be combined with any two adjacent pulleys upside down. For example, if a diameter 31 pulley and a diameter 41 pulley with the same aperture are installed on the motor, a double-layer pulley can be formed. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes.\u003c\/li\u003e\n\u003cli\u003eNotice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. For the stiffness of the thin shaft, it is recommended to choose a 4mm belt for a shaft below 8mm and a 5mm belt for a shaft above 8mm. In addition, the belt with a diameter of 4mm can be selected for the short center distance, and the belt with a diameter of 5mm can be selected for the larger one to obtain better transmission performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612197998841,"sku":"a23062800ux0565","price":11.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23062800ux0565_ux_g03.jpg?v=1751539132"},{"product_id":"p-1791138","title":"Aluminum A-Type 5 Step Pulley Wheel 14mm Bore 55-150mm Outer Dia for A-Type V-Belt 12.7mm Belt Width","description":"\u003col\u003e\n\u003cli\u003eA-type V-belt pulley wheel is made of aluminum alloy, and high-speed rotation does not shake, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eAluminum pulleys are suitable for A-type V-pulley timing belts driven by motor shafts. There are different grades of grooves for different speed requirements.\u003c\/li\u003e\n\u003cli\u003eAfter receiving the pulley, put the pulley on the fire and bake for 2 minutes, align the keyway of the pulley and the motor shaft, and pad the shock-absorbing wooden block when knock, otherwise, it is easy to damage the pulley.\u003c\/li\u003e\n\u003cli\u003eNotice: Screw holes are not included, the hole has the keyway on top, as long as the hole is the same diameter and the synchronous wheel diameter match.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612576600313,"sku":"a23072800ux0574","price":26.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23072800ux0574_ux_g03.jpg?v=1772298870"},{"product_id":"p-1791139","title":"Aluminum A-Type 5 Step Pulley Wheel 16mm Bore 55-150mm Outer Dia for A-Type V-Belt 12.7mm Belt Width","description":"\u003col\u003e\n\u003cli\u003eA-type V-belt pulley wheel is made of aluminum alloy, and high-speed rotation does not shake, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eAluminum pulleys are suitable for A-type V-pulley timing belts driven by motor shafts. There are different grades of grooves for different speed requirements.\u003c\/li\u003e\n\u003cli\u003eAfter receiving the pulley, put the pulley on the fire and bake for 2 minutes, align the keyway of the pulley and the motor shaft, and pad the shock-absorbing wooden block when knock, otherwise, it is easy to damage the pulley.\u003c\/li\u003e\n\u003cli\u003eNotice: Screw holes are not included, the hole has the keyway on top, as long as the hole is the same diameter and the synchronous wheel diameter match.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612576895225,"sku":"a23072800ux0575","price":26.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23072800ux0575_ux_g03.jpg?v=1772298562"},{"product_id":"p-1791141","title":"Aluminum A-Type 5 Step Pulley Wheel 20mm Bore 55-150mm Outer Dia for A-Type V-Belt 12.7mm Belt Width","description":"\u003col\u003e\n\u003cli\u003eA-type V-belt pulley wheel is made of aluminum alloy, and high-speed rotation does not shake, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eAluminum pulleys are suitable for A-type V-pulley timing belts driven by motor shafts. There are different grades of grooves for different speed requirements.\u003c\/li\u003e\n\u003cli\u003eAfter receiving the pulley, put the pulley on the fire and bake for 2 minutes, align the keyway of the pulley and the motor shaft, and pad the shock-absorbing wooden block when knock, otherwise, it is easy to damage the pulley.\u003c\/li\u003e\n\u003cli\u003eNotice: Screw holes are not included, the hole has the keyway on top, as long as the hole is the same diameter and the synchronous wheel diameter match.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612577157369,"sku":"a23072800ux0578","price":25.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23072800ux0578_ux_g03.jpg?v=1772298591"},{"product_id":"p-1791142","title":"Aluminum A-Type 5 Step Pulley Wheel 24mm Bore 55-150mm Outer Dia for A-Type V-Belt 12.7mm Belt Width","description":"\u003col\u003e\n\u003cli\u003eA-type V-belt pulley wheel is made of aluminum alloy, and high-speed rotation does not shake, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eAluminum pulleys are suitable for A-type V-pulley timing belts driven by motor shafts. There are different grades of grooves for different speed requirements.\u003c\/li\u003e\n\u003cli\u003eAfter receiving the pulley, put the pulley on the fire and bake for 2 minutes, align the keyway of the pulley and the motor shaft, and pad the shock-absorbing wooden block when knock, otherwise, it is easy to damage the pulley.\u003c\/li\u003e\n\u003cli\u003eNotice: Screw holes are not included, the hole has the keyway on top, as long as the hole is the same diameter and the synchronous wheel diameter match.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612577321209,"sku":"a23072800ux0580","price":25.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23072800ux0580_ux_g03.jpg?v=1772298855"},{"product_id":"p-1791143","title":"Aluminum A-Type 5 Step Pulley Wheel 25mm Bore 55-150mm Outer Dia for A-Type V-Belt 12.7mm Belt Width","description":"\u003col\u003e\n\u003cli\u003eA-type V-belt pulley wheel is made of aluminum alloy, and high-speed rotation does not shake, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eAluminum pulleys are suitable for A-type V-pulley timing belts driven by motor shafts. There are different grades of grooves for different speed requirements.\u003c\/li\u003e\n\u003cli\u003eAfter receiving the pulley, put the pulley on the fire and bake for 2 minutes, align the keyway of the pulley and the motor shaft, and pad the shock-absorbing wooden block when knock, otherwise, it is easy to damage the pulley.\u003c\/li\u003e\n\u003cli\u003eNotice: Screw holes are not included, the hole has the keyway on top, as long as the hole is the same diameter and the synchronous wheel diameter match.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612577485049,"sku":"a23072800ux0581","price":25.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23072800ux0581_ux_g03.jpg?v=1772308706"},{"product_id":"p-1791144","title":"Aluminum A-Type 5 Step Pulley Wheel 28mm Bore 55-150mm Outer Dia for A-Type V-Belt 12.7mm Belt Width","description":"\u003col\u003e\n\u003cli\u003eA-type V-belt pulley wheel is made of aluminum alloy, and high-speed rotation does not shake, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eAluminum pulleys are suitable for A-type V-pulley timing belts driven by motor shafts. There are different grades of grooves for different speed requirements.\u003c\/li\u003e\n\u003cli\u003eAfter receiving the pulley, put the pulley on the fire and bake for 2 minutes, align the keyway of the pulley and the motor shaft, and pad the shock-absorbing wooden block when knock, otherwise, it is easy to damage the pulley.\u003c\/li\u003e\n\u003cli\u003eNotice: Screw holes are not included, the hole has the keyway on top, as long as the hole is the same diameter and the synchronous wheel diameter match.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612577616121,"sku":"a23072800ux0582","price":25.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23072800ux0582_ux_g03.jpg?v=1772298577"},{"product_id":"p-1791145","title":"Single Groove Pulley 4mm Fixed Bore 16mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 4mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612577812729,"sku":"a23082000ux0318","price":7.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0318_ux_g03.jpg?v=1753863064"},{"product_id":"p-1791146","title":"Single Groove Pulley 5mm Fixed Bore 16mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 4mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612577943801,"sku":"a23082000ux0319","price":7.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0319_ux_g03.jpg?v=1751553136"},{"product_id":"p-1791147","title":"Single Groove Pulley 6mm Fixed Bore 16mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 4mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612578107641,"sku":"a23082000ux0320","price":7.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0320_ux_g03.jpg?v=1751553148"},{"product_id":"p-1791148","title":"Single Groove Pulley 8mm Fixed Bore 16mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 4mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612578926841,"sku":"a23082000ux0321","price":7.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0321_ux_g03.jpg?v=1751553159"},{"product_id":"p-1791149","title":"Single Groove Pulley 4mm Fixed Bore 20mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612579090681,"sku":"a23082000ux0322","price":7.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0322_ux_g03.jpg?v=1751553171"},{"product_id":"p-1791150","title":"Single Groove Pulley 5mm Fixed Bore 20mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612579221753,"sku":"a23082000ux0323","price":7.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0323_ux_g03.jpg?v=1751553183"},{"product_id":"p-1791151","title":"Single Groove Pulley 6mm Fixed Bore 20mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612579385593,"sku":"a23082000ux0324","price":7.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0324_ux_g03.jpg?v=1751553195"},{"product_id":"p-1791152","title":"Single Groove Pulley 8mm Fixed Bore 20mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612579516665,"sku":"a23082000ux0325","price":7.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0325_ux_g03.jpg?v=1755419419"},{"product_id":"p-1791153","title":"Single Groove Pulley 10mm Fixed Bore 20mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612579647737,"sku":"a23082000ux0326","price":7.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0326_ux_g03.jpg?v=1751553219"},{"product_id":"p-1791154","title":"Single Groove Pulley 10mm Fixed Bore 80mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612579811577,"sku":"a23082000ux0327","price":17.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0327_ux_g03.jpg?v=1751553231"},{"product_id":"p-1791155","title":"Single Groove Pulley 12mm Fixed Bore 80mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612580008185,"sku":"a23082000ux0328","price":19.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0328_ux_g03.jpg?v=1751553244"},{"product_id":"p-1791156","title":"Single Groove Pulley 14mm Fixed Bore 80mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612580139257,"sku":"a23082000ux0329","price":19.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0329_ux_g03.jpg?v=1751553256"},{"product_id":"p-1791157","title":"Single Groove Pulley 16mm Fixed Bore 80mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612580270329,"sku":"a23082000ux0331","price":17.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0331_ux_g03.jpg?v=1751553268"},{"product_id":"p-1791158","title":"Single Groove Pulley 17mm Fixed Bore 80mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612580466937,"sku":"a23082000ux0332","price":19.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0332_ux_g03.jpg?v=1751553280"},{"product_id":"p-1791159","title":"Single Groove Pulley 19mm Fixed Bore 80mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612580565241,"sku":"a23082000ux0334","price":19.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0334_ux_g03.jpg?v=1751553293"},{"product_id":"p-1791160","title":"Single Groove Pulley 20mm Fixed Bore 80mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612581384441,"sku":"a23082000ux0335","price":17.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0335_ux_g03.jpg?v=1751553306"},{"product_id":"p-1791162","title":"Single Groove Pulley 25mm Fixed Bore 80mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612581712121,"sku":"a23082000ux0339","price":17.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0339_ux_g03.jpg?v=1752210320"},{"product_id":"p-1791163","title":"Single Groove Pulley 4mm Fixed Bore 40mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612581843193,"sku":"a23082000ux0340","price":11.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0340_ux_g03.jpg?v=1751553341"},{"product_id":"p-1791164","title":"Single Groove Pulley 5mm Fixed Bore 40mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612582007033,"sku":"a23082000ux0341","price":11.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0341_ux_g03.jpg?v=1751553353"},{"product_id":"p-1791165","title":"Single Groove Pulley 6mm Fixed Bore 40mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612582170873,"sku":"a23082000ux0342","price":11.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0342_ux_g03.jpg?v=1753967251"},{"product_id":"p-1791166","title":"Single Groove Pulley 8mm Fixed Bore 40mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612582301945,"sku":"a23082000ux0343","price":11.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0343_ux_g03.jpg?v=1751553380"},{"product_id":"p-1791167","title":"Single Groove Pulley 10mm Fixed Bore 40mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612582433017,"sku":"a23082000ux0344","price":11.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0344_ux_g03.jpg?v=1751553392"},{"product_id":"p-1791168","title":"Single Groove Pulley 12mm Fixed Bore 40mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612582596857,"sku":"a23082000ux0345","price":11.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0345_ux_g03.jpg?v=1751553403"},{"product_id":"p-1791169","title":"Single Groove Pulley 14mm Fixed Bore 40mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612582760697,"sku":"a23082000ux0346","price":11.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0346_ux_g03.jpg?v=1751553415"},{"product_id":"p-1791170","title":"Single Groove Pulley 15mm Fixed Bore 40mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612583055609,"sku":"a23082000ux0347","price":11.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0347_ux_g03.jpg?v=1751553427"},{"product_id":"p-1791171","title":"Single Groove Pulley 16mm Fixed Bore 40mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612583317753,"sku":"a23082000ux0348","price":11.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0348_ux_g03.jpg?v=1751553440"},{"product_id":"p-1791172","title":"Single Groove Pulley 17mm Fixed Bore 40mm Outer Diameter Aluminum Alloy","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612583448825,"sku":"a23082000ux0349","price":11.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0349_ux_g03.jpg?v=1751553452"},{"product_id":"p-1791173","title":"Single Groove Pulley 18mm Fixed Bore 40mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612583645433,"sku":"a23082000ux0350","price":11.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0350_ux_g03.jpg?v=1751553465"},{"product_id":"p-1791174","title":"Single Groove Pulley 19mm Fixed Bore 40mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt","description":"\u003col\u003e\n\u003cli\u003eThe single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation.\u003c\/li\u003e\n\u003cli\u003eSilver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc.\u003c\/li\u003e\n\u003cli\u003eFirst, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right.\u003c\/li\u003e\n\u003cli\u003eNotice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Harfington","offers":[{"title":"Default Title","offer_id":46612584005881,"sku":"a23082000ux0351","price":11.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a23082000ux0351_ux_g03.jpg?v=1751553477"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/collections\/MRO68ad66200331dzTBng5aYnEMcB7sOUr66TfI1.jpg?v=1756194341","url":"https:\/\/www.harfington.com\/en-au\/collections\/v-type-pulleys-c-302233.oembed","provider":"Harfington","version":"1.0","type":"link"}