3 hole U belt pulley, the pulley has 3 holes, respectively 1.9mm (tight 2mm axis), 1.9mm, 2.05mm (loose with 2mm axis). There are 2 symmetrical eccentric hole on the pulley, thus can be used as an eccentric wheel, can be used as a miniature small belt wheel, an eccentric wheel, a crank wheel, gear wheel. 5 packages, 2.2 yuan, 1 yuan.
Reference thickness: 3.6mm
Outer circle diameter: 24mm
Product aperture: 1.9mm, 1.9mm, 2.05mm, the corresponding hole spacing 5mm
Shipping list: 5, 1, 2.2 yuan