... balls AISI52100Universal material for ball and roller bearing industry.Chrome steel balls contain chromium and due to through hardeninghas an ... &roller bearings, Linear montion, Balls lead screws, grinding media.Carbon steel balls AISI1015Feature: High hardness with a soft core givingresistance to ... example: castors, conveyors, rollerskates, drawer slides, seat slides, bicycles,etc. steel wheel balls