C.A.T Cylindrical Bearing Outer Race 3D-1100 3D1100 171.45mm Outer Diameter

171.45 mm Precision Outer Diameter & Micro-Lapped Raceway: Features a precision-ground 171.45 mm outside diameter engineered for exact interference-fit seating in axle and gear housings. The micro-lapped inner tapered raceway ensures uniform stress distribution and friction-free roller movement under extreme loads. 

Carburized Alloy Bearing Steel & High Fatigue Strength: Manufactured from high-purity carburized alloy steel with deep case-hardening. Combines an ultra-hard exterior raceway (HRC 60+) with a tough ductile core to resist shock loading, micro-spalling, and heavy operational vibration. 

Engineered for Heavy Duty Axles & Differential Carriers: Specifically designed for drive axles, differential carrier supports, and planetary reduction units on high-tonnage machines. Maintains rigid shaft alignment and precise preload settings under multidirectional forces.