The precision shim is a key part of the Dual V Wheel Kit – Delrin and Dual V Wheel Kit. By placing it between the two bearings, you can avoid binding and make your project run more smoothly. Plus, they're inexpensive and can be used on any project! 10mm OD x 5mm Bore x 1mm thickness.

Precision shims are great for use with our ACME lead screws. They're perfect for use with our 688Z or F8-16M bearings and 8mm lock collars. Thickness 1mm, Bore 8.1 mm, diameter 12mm