Leading crankshaft manufacturer, Arrow Precision Ltd, of Hinckley, Leicestershire, have recently expanded their capabilities by installing a rigid polishing machine for use on main and crankpin journals. Optimising journal surface finish and cylindricity is key to minimising wear and improving fatigue life. The rigid polishing system works via a precision manufactured shoe, or housing, which contacts the entire bearing journal surface to be polished. Abrasive tape is then fed into the...