462-0407: BEARING-ROLL

Cat 462-0407 is a Caterpillar single-row cylindrical roller bearing, primarily used in heavy machinery transmission systems for high radial load conditions. It is suitable for low-to-medium speed, heavy-load applications such as gearboxes, drive axles, and differentials. The following are precise core information:

Core Parameters (Precise Version)

Item Details
Basic Information: Model 462-0407, type is single-row cylindrical roller bearing (NU type, separable inner ring, no flange), suitable for pure radial high loads and applications requiring minimal axial displacement (thermal expansion compensation). Used for supporting gear shafts and output shafts in transmission systems, ensuring transmission accuracy and stability.

Suitable Models: Suitable for Cat 980K/L/M loaders, D9T bulldozers, 777F mining trucks, 637G scrapers, etc. Commonly used in gearbox secondary shafts, drive axle differential shafts, and final drive planetary carrier support areas.

Material and Manufacturing Process Material: Chromium-molybdenum alloy steel (52CrMo4), forged and integrally quenched and tempered (hardness HRC30-35), raceway and roller surfaces medium-frequency quenched (hardness HRC58-62), surface grinding accuracy Ra≤0.4μm, cage is made of stamped steel plate, strong impact and deformation resistance.

Key Dimensions: Inner diameter 120mm, outer diameter 215mm, total width 40mm, wall thickness 47.5mm, chamfer C2, roller diameter 18mm, number of rollers 24, weight approximately 6.5kg, dimensional tolerance ±0.02mm, interference fit with shaft 0.015-0.03mm, radial clearance 0.03-0.06mm.

Matching Components: Compatible shaft model 10-3223 (diameter 120mm, length 350mm), matching bearing housing model 462-0408, recommended use of extreme pressure lithium-based grease (model…). (10-9275) Installation coaxiality requirement ≤0.03mm
Function, Installation and Maintenance Points
Core Function: Bears pure radial heavy load, allows slight axial displacement of the shaft due to thermal expansion, reduces the friction coefficient of transmission components, reduces wear, adapts to heavy-load continuous operation conditions, and extends the service life of the transmission system.

Installation Points: Use a hot-fitting process (oil temperature 80-100℃) to install the inner ring, avoiding hard hammering deformation; after installation, check the radial clearance (0.03-0.06mm) to ensure flexible operation; the bearing housing bolt torque value is 220-250N・m, tightened evenly diagonally.

Maintenance Points: Check the lubrication status every 400 hours, and replenish grease every 600 hours; when the roller surface shows peeling, wear exceeding 0.15mm, or radial clearance greater than 0.2mm, replace it promptly to prevent abnormal wear of the shaft and bearing housing.