The Tamiya 70140 large pulley set includes six pulleys of various sizes along with an assortment of single and double bushings that make the pulleys compatible with round and hexagonal shafts of both 3 mm and 2 mm diameters. Depending on the bushing, the pulleys can either idle on a shaft or rotate with it. The double bushings allow for pulleys to be connected and sit next to each other on the same shaft. Other parts in the set include a belt guide for use with a motor shaft, power bands, and a screw and nut set.
Included:
Two 50 mm-diameter pulleys
Two 25 mm-diameter pulleys
Two 11 mm-diameter pulleys
Two single and two double 2 mm hexagonal bushings
Two single and two double 3 mm hexagonal bushings
Two single and two double 3.1 mm round bushings (allow pulleys to idle on 3 mm hexagonal and round shafts)
Two single and two double 2.9 mm round bushings (allow pulleys to rotate with 3 mm round shafts)
Two single and four double 2.1 mm round bushings (allow pulleys to idle on 2 mm round shafts)
Four single and two double 1.9 mm round bushings (allow pulleys to rotate with 2 mm round shafts)
One belt guide
Power bands
Six 3 x 18 mm screws
Six 3 x 18 mm tapping screws
Six 2 x 18 mm screws
Ten 3 mm nuts
Ten 2 mm nuts
Four 3 mm plastic nuts