CAT 085-3625 BEARING A

CAT 085-3625 (0853625) is a Caterpillar original equipment manufacturer (CAT) bearing assembly for construction machinery working devices. It integrates bearings, bushings, seals, retaining rings, etc., and is compatible with 259D3/279D3 skid steer loaders and 906H/907H mini excavators. It is used at boom joints and connecting rod hinge points, bearing radial and bidirectional axial loads, suitable for medium-speed, medium-load conditions, ensuring precise positioning and smooth operation.

Core Parameters and Information

Item Details
Part Model: CAT 085-3625 (0853625) Bearing Assembly

Type: Integrated Engineering Machinery Bearing Assembly (including bearing, bushing, seals, and retaining ring)

Core Bearing: CAT 085-3602 Double Row Angular Contact Ball Bearing

Supporting Components: 085-3552 Bushing, 083-5018 Retaining Ring, 083-5020 Adjusting Ring

Material: Bearing steel (chrome bearing steel) + tin bronze bushing, surface rust prevention and self-lubricating treatment

Key Dimensions: Inner diameter 40mm, Outer diameter 80mm, Overall length 50mm, Axial clearance 0.02-0.05mm

Performance Parameters: Basic rated dynamic load 38.5kN, static load 25.2kN, Grease-lubricated limiting speed 5000rpm, Applicable temperature -40℃ to +120℃

Compatible Models: CAT 259D3/279D3 Skid Steer Loader, 906H/907H Mini Excavator
Compatibility and Application
Compatible Parts: Boom joints and connecting rod hinge points of the working device of the 259D3/279D3 skid steer loader and 906H/907H mini excavator. Bearing radial and bidirectional axial loads, suitable for medium-speed, medium-load conditions, ensuring precise positioning and smooth operation, preventing vibration wear, and improving operational reliability.

Application Scenarios: Suitable for frequent load-changing operations such as excavation and loading, ensuring smooth operation of the boom joints and connecting rod hinge points of the working device, preventing component loosening and wear, reducing the risk of failure, and improving operational safety and reliability.

Matching System: Integrates 085-3602 double-row angular contact ball bearing, 085-3552 bushing, 083-5018 retaining ring, and 083-5020 adjusting ring. The bearing provides radial and bidirectional axial load capacity, the bushing reduces friction and wear, the retaining ring provides axial positioning, and the adjusting ring controls bearing clearance. Suitable for long-term high-frequency vibration operations, preventing component fatigue damage.

Installation and Maintenance Points:

Installation: Clean the journal, bearing housing bore, and components; check dimensional tolerances; use specialized tools for press-fitting; avoid hammering; after installation, ensure a good fit, no jamming or looseness, flexible rotation without abnormal noise, and axial clearance of 0.02-0.05mm.

Maintenance: Check lubrication status and for abnormal noise/vibration every 200 hours; regularly replenish lithium-based grease (NLGI 2 grade); prevent water and dust intrusion to prevent rust and wear.

Replacement: Use a special puller for disassembly to avoid damaging the journal/bearing housing bore; check the dimensions and accuracy before installing the new component, and test its smooth operation after installation, ensuring there are no abnormal noises.