CAT 087-4708 BUSHING

CAT 087-4708 (0874708) is a Caterpillar genuine wear-resistant bushing for the articulation points of construction machinery. It is compatible with the articulation points of the working devices of 259D3/279D3 skid steer loaders and 906H/907H mini excavators. It works in conjunction with 087-1112 bearings, 087-1404 elastic retaining rings, and 087-1873 dust rings to provide wear-resistant support, reduce friction and wear at the articulation points, and ensure stable operation.

Core Parameters and Information

Item Details
Part Model: CAT 087-4708 (0874708) Hinge Point Wear-Resistant Bushing

Type: Radial Wear-Resistant Bushing for Construction Machinery Hinge Points

Material: 42CrMo alloy steel, surface hardened (hardness HRC58-62), wear-resistant and impact-resistant

Key Dimensions: Inner diameter 60mm, outer diameter 70mm, length 50mm, wall thickness 5mm

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

Matching Relationships: Compatible with 087-1112 bearings, 087-1404 elastic retaining rings, 087-1873… Dust ring accessories for wear-resistant support of articulation point assemblies.

Suitable for:
Surroundings: Articulation points of skid steer loaders, mini excavators (boom and frame, connecting rod and boom, etc.), suitable for frequent load changes and vibration conditions.

Application scenarios: Outdoor operations such as excavation and loading. Provides wear-resistant support for articulation points, reduces friction between pins and bearings, reduces component wear, prevents excessive clearance from causing abnormal noise, improves the reliability of articulation points, and reduces maintenance costs.

Usage: The bushing provides wear-resistant support, the bearing bears radial load, the elastic retaining ring provides axial positioning, and the dust ring protects against foreign object intrusion, ensuring stable operation of components.

Installation and maintenance points:
Installation: Clean the mounting hole and check the bushing for deformation and cracks; use a pressing tool to smoothly press it into the mounting hole, ensuring a tight fit with the hole wall and proper alignment with the bearing and retaining ring.

Maintenance: Check the bushing for wear and deformation every 200 hours; replace it promptly if any abnormalities are found to prevent excessive clearance from damaging components. Replacement: Use a special tool to remove the old bushing and check the mounting hole for damage; before installing the new bushing, check the dimensions to ensure an interference fit with the mounting hole and that there is no looseness after pressing.