Notice: The thicker the belt, the greater the transmission power can be, but the bending flexibility of the belt is also greater. Note - For the stiffness of the thin pulley shaft, it is recommended to choose a 4mm belt for a pulley shaft below 8mm and a 5mm belt for a pulley shaft above 8mm. 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. Aluminium Alloy V Grooved Pulley, Heavy Duty Round V-Groove Pulley For 20 Tooth 6mm Bore 2mm Pitch GT2 Pulley for 6mm Belts The 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. With two sets of such pulleys, you can DIY small two-speed drilling machines, milling machines, and unpowered spindles for small lathes. Application - The 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. The 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. Size - Aperture Diameter: 6mm; Outer Diameter: 41mm; Height: 16mm; The pulley is a single groove, fixed hole with machine screws, which can be tightened with a plum drill bit, easy to fix and use. V Groove Bearing, 15x41x20mm Guide Bearing, Metal 15mm Inner Diameter... Material - The 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. 6mm Bore Pulley HARFINGTON V-Type Pulley 3.17mm Bore 20mm Outer Dia Single Groove Silver Tone 41mm OD Pulley
