TRB RC 12x18x4mm Precision High Speed Ball Bearing, Ceramic Hybrid. Chrome Steel 52100 (GCr15) ABEC 5 Races with Ceramic Si3N4 Grade 5 Balls, Red Rubber Seals.
Part SKU# RED-TRB-6701-2RS/Cx2

Chromium Steel Races
Ceramic Si3N4 Balls
Low Torque Start Up

Dimensions as follows: ID, OD, Width: 12x18x4mm

This Bearing is Compatible with Part #:
Losi: LOSA6956
HPI: B033
Compatible with Traxxas: 5120
Team Associated: 91155

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.