CAT 087-1873 RING

CAT 087-1873 (0871873) is a Caterpillar genuine dust seal/wear ring for construction machinery. It is compatible with the hinge points of the working devices of 259D3/279D3 skid steer loaders and 906H/907H mini excavators. It is used in conjunction with 087-0328 bushings, 087-1112 bearings, and 087-1404 elastic retaining rings to seal against dust, prevent impurities from entering the hinge area, reduce component wear, and ensure stable Cat® operation…

Core Parameters and Information

Item Details
Part Model: CAT 087-1873 (0871873) Dust Ring / Wear Ring

Type: Dust Ring / Wear Ring for Construction Machinery Articulation Points

Material: Polyurethane (PU), wear-resistant, oil-resistant, and anti-aging

Key Dimensions: Inner diameter 55mm, outer diameter 60mm, thickness 5mm, lip thickness 1.2mm

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

Matching Relationship: Compatible with 087-0328 bushings, 087-1112 bearings, and 087-1404 elastic retaining rings for sealing and dustproofing articulation point assemblies.

Suitable Applications:
Suitable Parts: Articulation points of skid steer loaders, mini excavators, boom and frame, connecting rods and boom, etc., suitable for frequent load changes and vibration conditions (Cat®…).

Application Scenarios: Outdoor operations such as excavation and loading. Prevents dust, sand, moisture, and other impurities from entering the bearing and bushing mating surfaces, reducing friction and wear, extending the service life of hinged components, and lowering maintenance costs. (Cat®…)

Compatible with: 087-0328 bushing, 087-1112 bearing, and 087-1404 elastic retaining ring. The dust ring provides sealing protection, the bushing offers wear-resistant support, the bearing bears radial loads, and the elastic retaining ring provides axial positioning, ensuring stable operation of the hinged parts. (Cat®…)

Installation and Maintenance Points:

Installation: Clean the mounting groove and shaft diameter. Check the dust ring for damage and ensure the lip is intact. Smoothly press the dust ring into the mounting groove, with the lip facing outwards, ensuring a tight seal against the bearing and retaining ring, guaranteeing a reliable seal and preventing loosening. (Cat®…)

Maintenance: Check the dust ring every 200 hours for damage, aging, or deformation. Replace immediately if any abnormalities are found to prevent impurities from entering and causing wear on components. (Cat®…) Replacement: Use a special tool to remove the old dust ring and check the mounting groove for damage; before installing the new dust ring, check the dimensions to ensure a tight fit with the mounting groove, no flanges on the lip, and an effective seal (Cat®…).