CAT 085-3307 BEARING

CAT 085-3307 (0853307) is a Caterpillar genuine single-row deep groove ball bearing, suitable for 259D3/279D3 skid steer loaders and 906H/907H mini excavators. It is used in the working device linkage, boom joint, and other parts, primarily bearing radial loads while also accommodating slight bidirectional axial loads. It is suitable for low-to-medium speed and light-to-medium load conditions, ensuring smooth operation of components (Cat®…).

Core Parameters and Information

Item Details
Part Model: CAT 085-3307 (0853307) Single Row Deep Groove Ball Bearing

Type: Engineering machinery single row deep groove ball bearing, primarily radial, with slight bidirectional axial load support

Material: Bearing steel (chromium bearing steel), surface rust-proof treatment

Key Dimensions: Inner diameter 40mm, outer diameter 68mm, width 15mm, chamfer 1mm

Performance Parameters: Basic rated dynamic load 19.5kN, basic rated static load 11.2kN, limiting speed 6000rpm (grease lubrication), applicable temperature -40℃ to +120℃

Compatible Models: CAT 259D3/279D3 skid steer loaders, 906H/907H mini excavators

Matching Relationship: Compatible with 083-3296 bearing assembly, 083-5018 axle retaining ring, 083-5020… Adjusting Ring for Use

Compatibility and Application

Suitable Parts: Working device linkages, boom joints, etc., of 259D3/279D3 skid steer loaders and 906H/907H mini excavators. Used to withstand radial loads and can also withstand slight bidirectional axial loads. Suitable for low-to-medium speed and light-to-medium load conditions, ensuring smooth operation of components, preventing vibration wear, and improving operational reliability.

Application Scenarios: Suitable for frequent load-changing operations such as excavation and loading, including continuous excavation and shoveling operations. Ensures smooth operation of working device linkages, boom joints, etc., preventing component loosening and wear, reducing the risk of failure, and improving operational safety and reliability.

Compatible Use: Used with 083-3296 bearing assembly, 083-5018 shaft retaining ring, and 083-5020 adjusting ring to jointly ensure stable operation of working device linkages, boom joints, etc., suitable for long-term high-frequency vibration operations, and preventing component fatigue damage.

Installation and Maintenance Points

Installation: Clean the journal and bearing housing bore, and check dimensional tolerances; use cold mounting or heated mounting (heating temperature ≤80℃), avoiding impact on the bearing; after installation, ensure the bearing fits well with the journal and bearing housing bore, without jamming or looseness, and rotates freely without abnormal noise.

Maintenance: Check the bearing lubrication status every 200 hours, for any abnormal noises or vibrations, and replenish grease regularly; avoid contact with water, dust, and other contaminants to prevent rust and wear.

Replacement: Use a special puller during disassembly to avoid damaging the journal and bearing housing bore; before installing a new bearing, check its dimensions and accuracy to ensure it matches the original specifications; after installation, test the component for smooth operation without abnormal noise to ensure stable operation.