DARMANN offers a wide range of cup wheel (Type 6) sizes for the flat finishing of transmission pinion gears or other flat surfaces. The sizes range from a 65mm to 100 mm outside diameter, however DARMANN can custom manufacture any dimensional requirement up to 100mm (outside diameter).

Grit sizes for flat finishing of pinion gears range from 240 grit to 600 grit in the FEPA designation. The most optimum abrasive type used in this application is Fused Aluminum Oxide (FA designation).