Deep groove ball bearings and so on, these bearings inside and outside the ring surface is generally metal color, or surface chrome plated?
Outer cover milling installation opening: inner ball into 90 degrees, into the outer garment deep groove ball bearings: the steel ball into the inner coat - release ball bearings, first remove the cage, the ball "catch" to one side, the inner and outer ring from the.
Who recommended what answer, give an irrelevant answer.
Most bearing steel for steel, is a natural.
