Bearings, Hybrid Ceramic Bearings 1pcs SMR83 2OS 3x8x3 mm Hybrid Ceramic Bearings MR83 SMR83C RS 2RS ABEC-7 RC Cars Trucks Reels Si3N4 Ceramic Ball Bearing(SMR117C-2OS 7x11x3mm),High Hardness and Tou

Bearing NO.: SMR83C-2OSRings Material: 440C Stainless SteelBalls Material: Si3N4 CeramicInner Diameter: 3mmOuter Diameter: 8mmWidth: 3mmPrecision: ABEC-7(P4)Seal Type: Orange Rubber SealsLubrication: Self-Lubrication(No grease or oil)Feature: High speed, Drylubrication, insulationSince monitors are not calibrated same, item colors displayed in photos may be showing slightly different from the actual item.Please allow 0-1 inch error due to manual measurement.

• Bearings are sealed to retain lubricant
• The rotation speed is faster, the ceramic ball has oil-free self-lubrication, and the friction coefficient of the ceramic ball is small, so the rotation speed of the ceramic ball bearing can reach 1.5 times or more.
• Long life: Since it does not use grease and uses ceramic balls, it has a lifespan 2 to 4 times longer than ordinary bearings.
• Insulation. Ceramic ball bearings insulate the inner and outer bearing rings.