Plastic Model Pulley Wheel Drive Belt 1.2mm Square Section or 2mm Steel Shaft Various

This is one item of plastic pulley available in various diameters as shown which is intended to push-fit onto 2mm diameter miniature motor shafts and carry a 1.2mm square section rubber drive belt. The pully plastic material is black high impact polystyrene. The pullies, shafts, and belts are available on this listing as separate items. The rubber belts are intended for cassette tape drives and they are a good fit for the V-section pullies. The 10mm pully is intended for flat or circular belts of 2mm width or diameter but will still work with the 1.2mm square section belts.

The belt size is expressed as a diameter where that is the distance across the centre when it is laid out flat in a circle.

The 75mm shaft is stainless steel and the 150mm shaft is copper plated steel.

The higher pack quantity options are cheaper per item. If you want a mix of items in a pack, please use the MIX variation and add a note to the purchase with a list of your requirements or send me a site message.

Headline Specifications (mm)

Item Outer Dia. Groove Dia. Wheel Height Total Height

7mm Pully 7.1 3.3 5.1 9.8
9mm Pully 9.3 4.9 9.7 14.4
12mm Pully 12.3 7.7 4.7 9.1
18mm Pully 18.4 13.9 5.0 8.9
25mm Pully 24.8 20.4 4.5 9.2
30mm Pully 31.2 26.7 4.7 9.6

10mm Pully 10.0 5.7 5.7 10.9 Round/Flat CS

75mm Shaft
150mm Shaft

40mm Belt
57mm Belt
83mm Belt
87mm Belt

There are worms and cogs which fit the same 2mm shafts and small motors on other listings in my Etsy shop.