Before revision: Flat pressing plates are often used in the pressing of brearings , while soft copper, brass, or aluminum jaw covers are often used in vises to help avoid brinell marks from being forced into the workpiece.Automotive Service: Inspection, Maintenance and Repair by Tim Gilles -- Delmar Learning 2004 Page 1016 False brinelling A similar-looking kind of damage is called false brinelling and is caused by fretting wear.
After revision: Flat pressing plates are often used in the pressing of bearings , while soft copper, brass, or aluminum jaw covers are often used in vises to help avoid brinell marks from being forced into the workpiece.Automotive Service: Inspection, Maintenance and Repair by Tim Gilles -- Delmar Learning 2004 Page 1016 False brinelling A similar-looking kind of damage is called false brinelling and is caused by fretting wear.