To remove tiny blemishes on the journal surface after it has been ground on a crankshaft grinder or to remove minor imperfections on a shaft that does not need regrinding.
Depending on the the finish you require there are various grits of belts available. For example 240,320,400 and also cork and scotch type. These come in 20mm and 25mm width but we have also made 10mm,13mm and 30mm to order.
These camshafts can also be used on camshafts and various other types of shafts.