TRB RC 5x10x4mm Hybrid Ceramic Clutch Ball Bearings Metal Shields -2-

TRB RC 5x10x4mm Precision High Speed Clutch Ball Bearing, Ceramic Hybrid. Chrome Steel 52100 (GCr15) ABEC 5 Races with Ceramic Si3N4 Balls, Metal Shields. Part SKU# TRB-MR105-ZZ/C Chromium Steel Races Ceramic Si3N4 Balls Low Torque Start Up Dimensions as follows: ID, OD, Width: 5x10x4mm This Bearing is Compatible with Part #: Kyosho: BRG001 Losi: LOSA6954 HPI: B021 Compatible with Traxxas: 5115, 4609 TLR: TLR6932 Team Associated: 25237 The Characteristic of Ceramic Balls Compared with steel, ceramic materials are noted for their better or particular characteristics, such as wear-resistance, corrosion resistance, high temperature resistance, electrical insulation (except SiC), non-magnetic, high strength, high rigidity, and low specific gravity. These properties qualify them for replacing steel to make bearings serve in conditions of higher speed, harsh environment and less lube, and decrease wear, noise, vibration and maintenance time of bearings, and eventually increase performance, reliability and life of bearings. Ceramic materials, which can be used in making bearings, include mainly silicon nitride, ZrO2, alumina (Al2O3), and silicon carbide .Si3N4 is first choice within the above mentioned ceramic materials due to its excellent characters (Table 1). And a properly engineered silicon nitride bearing ball fails in the same manner as a steel ball, flaking of the ball surface. But ZrO2, Al2O3 and SiC fail in a crush form, a catastrophic failure.