CAT 086-3524 BEARING

CAT 086-3524 (0863524) is a Caterpillar genuine construction machinery articulated needle roller bearing (with cage), suitable for 259D3/279D3 skid steer loaders and 906H/907H mini excavators. It is used in articulated parts such as the boom and connecting rod, and is paired with 085-8823/085-8827 bushings and 085-9967/086-1706 retainers. It bears radial loads, reduces component friction and wear, and ensures stable operation of the working device (Cat®…).

Core Parameters and Information

Item Details
Part Model: CAT 086-3524 (0863524) Hinge Point Needle Roller Bearing

Type: Needle Roller Bearing for Construction Machinery Hinge Points (with Cage)

Material: Bearing steel (GCr15), cage is stamped steel plate with rust-proof surface treatment

Key Dimensions: Inner diameter 50mm, outer diameter 62mm, length 28mm, needle roller diameter 3mm, quantity 16 pieces

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

Matching Relationship: Matches with 085-8823/085-8827 bushings and 085-9967/086-1706 retainers for radial support at hinge points

Compatibility and Application

Compatible Parts: 259D3/279D3 skid steer loaders, 906H/907H This product is for the boom joint and connecting rod hinge points of mini excavators, used for radial load support, suitable for Cat® applications involving frequent load changes such as excavation and loading.

Application Scenarios: For frequent load changes in operations such as excavation and loading, this product ensures stable operation of the boom joint and connecting rod hinge points, reducing component friction and wear, minimizing the risk of failure, and improving operational safety and reliability.

Compatible with: Uses 085-8823/085-8827 bushings and 085-9967/086-1706 retainers. The bushings provide wear-resistant support, the retainers provide axial positioning, and the bearings bear radial loads, ensuring stable component operation.

Installation and Maintenance Points:
Installation: Clean the mounting holes and journals, and check the dimensions; smoothly press the bearing into the mounting holes, using the 085-9967/086-1706 retainers for axial positioning, ensuring the bearing is not misaligned or jammed; after installation, it should rotate freely without abnormal noise.

Maintenance: Check the bearing’s rotational flexibility and for any abnormal noises every 200 hours. Regularly add grease (using lithium-based grease) to prevent dry friction from accelerating wear.

Replacement: After removing the retainer, remove the old bearing and check the mounting hole and journal for damage. Before installing the new bearing, verify its dimensions to ensure a tight fit with the mounting hole and journal. After installation, ensure smooth rotation without any abnormalities.