CAT 583-3282 General Duty Tapered Roller Bearing Cone

CAT 583-3282 YM is a Caterpillar tapered roller bearing inner ring, suitable for the hub/final drive systems of heavy equipment such as loaders and excavators. Together with the outer ring, rollers, and cage, it forms a complete tapered roller bearing, capable of withstanding radial and bidirectional axial heavy loads. The YM designation indicates high-quality matching supply, strong adaptability and durability, ensuring stable operation of transmission components. Cat®… The following are the core information and key points:

Core Technical Parameters

Item Details
Part Model CAT 583-3282 (5833282) Tapered Roller Bearing Inner Ring, suitable for heavy equipment wheel hubs/final drive tapered roller bearings, inner ring (Cone) only

Material GCr15SiMn high carbon chromium bearing steel, quenched + tempered (HRC60-64), raceway ultra-precision ground, surface roughness Ra≤0.08μm, core hardness HRC30-45, impact resistant, fatigue resistant, suitable for heavy-duty conditions

Key Dimensions Inner diameter 100mm (tolerance 0-0.02mm), outer diameter 135mm (tolerance 0-0.03mm), width 35mm (tolerance 0-0.02mm), cone angle 12°30′, raceway diameter 117.5mm, suitable roller diameter 12.7mm, matching outer ring 583-3283, Roller Assembly 583-3284
Compatible Models: CAT 950M/962M loaders, 320GC/323GC excavators, 770G mining trucks, etc. Used for drive axle hub bearings and final drive planetary gear shaft bearings. Suitable for speeds ≤2000rpm, heavy-duty conditions.

Performance Parameters: Radial rated load 85kN, Axial rated load 42kN, Limiting speed (grease lubrication) 2500rpm, Operating temperature -40℃ to 120℃, Clearance grade C3, Interference fit 0.015-0.025mm, ensuring secure installation and smooth operation.

Core Functions and Structural Features:
Heavy-duty Load Bearing: The inner ring raceway of the tapered roller bearing is tapered, forming line contact with the rollers and outer ring. It can simultaneously withstand large radial loads and bidirectional axial loads, suitable for heavy-duty parts such as drive axles and final drives of heavy equipment, preventing component deformation and damage (Cat®…).

High-precision fit: The raceway is ultra-precision ground, with strict control over dimensional and geometric tolerances. The interference fit with the shaft is precise, ensuring no looseness or misalignment after installation. This guarantees the overall rotational accuracy of the bearing, reduces wear on transmission components, and extends service life.

Wear-resistant and durable: Made of high-carbon chromium bearing steel with quenching and tempering treatment, it boasts high hardness and strong wear resistance. The smooth raceway surface reduces the coefficient of friction and minimizes heat generation during operation, making it suitable for harsh outdoor and dusty conditions. Maintenance intervals are long.

Strong adaptability: The YM mark signifies superior quality. Dimensions are identical to the original manufacturer’s, allowing for perfect matching with the original outer ring and roller assembly. Replacement is convenient and requires no additional adjustments, ensuring overall bearing performance is consistent with the original.