CAT 087-0385 RETAINER

CAT 087-0385 (0870385) is a Caterpillar original equipment manufacturer (OEM) elastic retainer ring (fixer) for articulation points on construction machinery. It is compatible with 259D3/279D3 skid steer loaders and 906H/907H mini excavators, used at the articulation points of the working device. It provides axial positioning for the 086-9971 dust cover, 086-9824 needle roller bearing, and 087-0328 bushing, preventing axial movement of components and ensuring stable operation of the articulated parts.

Core Parameters and Information

Item Details
Part Model: CAT 087-0385 (0870385) Articulation Point Elastic Retaining Ring (Fixer)

Type: Special Elastic Retaining Ring for Articulation Points in Engineering Machinery (for Shafts)

Material: 65Mn spring steel, galvanized surface + color passivation treatment, good elasticity and rust resistance

Key Dimensions: Inner diameter 55mm, outer diameter 65mm, thickness 2mm, opening width 3mm, suitable shaft groove diameter 60mm, groove width 2.2mm

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

Matching Relationships: Compatible with 086-9971 dust cover, 086-9824 needle roller bearing, 087-0328 bushing, 086-8762/086-8559 This retainer is used for axial positioning of articulated joint assemblies.

Suitable for:
Surroundings: Skid steer loaders, mini excavator boom and frame, connecting rod and boom articulation points, etc., suitable for frequent load changes and vibration conditions.

Applications: Outdoor operations such as excavation and loading; prevents axial movement of dust covers, bearings, and bushings, avoids component wear and loosening, improves the reliability of articulated joints, and reduces maintenance costs.

Compatible with: Uses with 086-9971 dust cover, 086-9824 needle roller bearing, and 087-0328 bushing. The retaining ring provides axial positioning, the dust cover protects against foreign objects, the bearing bears the load, and the bushing provides wear-resistant support, forming a complete protection and positioning system.

Installation and Maintenance:
Installation: Clean the shaft groove, use snap ring pliers to open the retaining ring, and smoothly insert it into the groove, ensuring a tight fit with the bottom of the groove, without skewing or loosening, ensuring reliable positioning.

Maintenance: Inspect the retaining ring every 200 hours for deformation, breakage, corrosion, and good elasticity; replace it promptly if any problems are found to prevent component movement.

Replacement: Use snap ring pliers to remove the old retaining ring and clean the shaft groove; before installing the new retaining ring, verify its dimensions to ensure a proper fit to the shaft groove; after installation, check the fit and elasticity to ensure effective positioning.