CAT 089-7694 BUSHING

CAT 089-7694 (0897694) is a Caterpillar genuine bimetallic self-lubricating bushing for construction machinery. It is suitable for the articulation points of the working devices of 259D3/279D3 skid steer loaders and 906H/907H mini excavators. It is used in conjunction with 088-6188 bearings and 088-4803 retainers for sliding support at articulation points, adapting to high-frequency vibration and variable load conditions, ensuring smooth operation.

Core Parameters and Information

Item Details
Part Model: CAT 089-7694 (0897694) Bimetallic Self-Lubricating Bushing

Type: Bimetallic Bushing for Engineering Machinery Articulation Points (Steel Back + Copper-Lead Alloy + PTFE Solid Lubricating Layer)

Material: Steel Back (Q235) + Copper-Lead Alloy (CuPb24Sn4) + PTFE Self-Lubricating Layer, Wear-resistant, Self-lubricating, High Load-Bearing Capacity

Key Dimensions: Inner Diameter 60mm, Outer Diameter 70mm, Length 45mm, Wall Thickness 5mm, Fitting Pin φ60mm, Mounting Hole φ70mm, Tolerance H7/g6

Compatible Models: CAT 259D3/279D3 Skid Steer Loader, 906H/907H Mini Excavator

Matching Relationship: Compatible with 088-6188 Bearing, 088-4803 Fixing Device, 087-1873 Dust ring accessories for articulation point assemblies.

Suitable for: Skid steer loaders, mini excavators, boom and frame, connecting rods and boom, etc., at articulation points. Installed between the mounting hole and the pin, it provides sliding support, reduces friction and wear, absorbs impact loads, and is suitable for high-frequency vibration and variable load conditions, ensuring smooth operation.

Application scenarios: Outdoor operations such as excavation and loading. The bimetallic structure and PTFE self-lubricating layer achieve oil-free or long-lasting lubrication, reducing maintenance frequency, adapting to harsh working conditions, extending component lifespan, and reducing maintenance costs.

Core functions: The bimetallic structure has high load-bearing capacity, and the PTFE self-lubricating layer has a low coefficient of friction, adapting to high-frequency vibration and variable load conditions, preventing component jamming and abnormal wear, and ensuring stable operation of the articulated parts.

Installation and maintenance points:
Installation: Clean the mounting hole and bushing, use a special tool to press smoothly, ensuring coaxiality and no axial movement; install in conjunction with the retainer, bearing, and dust ring to ensure flexible and jam-free operation.

Maintenance: Inspect the bushing every 200 hours for wear, loosening, or loss of the self-lubricating layer; replace immediately if any abnormalities are found to prevent component damage.

Replacement: Remove the old bushing and inspect the mounting holes and pins for damage; verify the dimensions before installing the new bushing, and test the hinge area after press-fitting to confirm there are no abnormal noises or axial movement.