... the outer diameter of bearing is no more than 400 millimeter, stamped steel cage is used2 Bearing Part NO.6000,6200,6300,6400,6800 ... Material: Chrome steel, Carbon steel, stainless steel and ceramic bearing.5 Special bearings and Nonstandard bearings according to customers' ... drawings & samples.6 Shield/closure: Open ball bearing, Z, ZZ, RS, 2RS, 2RZ7 Tolerance Code: ABEC-1 ...