CAT 088-6188 BEARING

CAT 088-6188 (0886188) is a Caterpillar genuine single-row radial deep groove ball bearing for construction machinery. It is suitable for the hinge points of the working devices of 259D3/279D3 skid steer loaders and 906H/907H mini excavators. It is used in conjunction with 088-4113/088-4114 bushings and 088-4803/088-2526 retainers for radial support of the hinge points, suitable for high-frequency vibration and variable load conditions, ensuring smooth operation.

Core Parameters and Information

Item Details
Part Model: CAT 088-6188 (0886188) Single Row Radial Deep Groove Ball Bearing

Type: Deep groove ball bearing for engineering machinery articulation points, double-sided dust cover seal

Material: Bearing steel (GCr15), outer ring/inner ring/balls are hardened, hardness HRC60-64, cage is reinforced nylon

Key Dimensions: Inner diameter 60mm, outer diameter 70mm, width 12mm, radial clearance C3, compatible with φ60mm pin, tolerance P0 grade

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

Matching Relationship: With 088-4113/088-4114 bushings, 088-4803/088-2526 retainers, 087-1873 Dust ring accessories for articulation point assemblies.

Suitable for: Skid steer loaders, mini excavator booms and frames, linkages and booms, etc., bearing radial loads, suitable for high-frequency vibration and variable load conditions, ensuring smooth operation.

Application scenarios: Outdoor operations such as excavation and loading, reducing friction and wear at articulation points, minimizing clearance and abnormal noise, extending component lifespan, and reducing maintenance costs.

Core functions: Deep groove ball bearing structure can withstand radial loads and bidirectional small axial loads; double-sided dust covers prevent dust and moisture intrusion, suitable for harsh working conditions, reducing maintenance frequency.

Installation and maintenance points:

Installation: Clean the mounting surface and bearings, use special tools to press smoothly, ensuring coaxiality and no axial movement; install in conjunction with bushings, retainers, and dust rings to ensure flexible and smooth operation.

Maintenance: Check bearings every 200 hours for abnormal noise, abnormal temperature rise, or damaged seals; regularly add CAT DEO special grease, replace promptly if abnormal to prevent component damage.

Replacement: Remove the old bearing and check for damage to the mounting holes and pins; before installing the new bearing, verify the dimensions, and after pressing, test the hinge area to confirm that there are no abnormal noises or axial movement.