
345Modern Abrasive Processes
10.5.1.4 Applications
Polishing of balls and rollers: Recently, MAF development involves the use of
magnetic eld to support abrasive slurries in polishing ceramic balls and
bearing rollers. A magnetic eld, containing abrasive grains and extremely
ne ferromagnetic particles in certain uids such as water or kerosene, lls
the chamber within a guide ring. The abrasive grains, ceramic balls, and
the oat (made from nonmagnetic material) are suspended by the mag-
netic forces. The balls are preset against the rotating drive shaft and are
polished by the mechanical abrasion action. Since the forces applied by the