CAT 088-2526 RETAINER

CAT 088-2526 (0882526) is a Caterpillar original equipment manufacturer (OEM) flexible retaining ring type retainer for articulation points on construction machinery. It is compatible with 259D3/279D3 skid steer loaders and 906H/907H mini excavators, used in the articulation point assembly of the working device. It is used in conjunction with 088-2012 bearings and 087-4766 bushings to achieve axial positioning and anti-loosening of the bearings/bushings, ensuring stable operation of the articulated parts and suitable for high-frequency vibration conditions.

Core Parameters and Information

Item Details
Part Model: CAT 088-2526 (0882526) Hinge Point Elastic Retaining Ring Type Fixer

Type: Engineering Machinery Hinge Point Bearing / Bushing Axial Positioning Fixer

Material: 65Mn spring steel, galvanized and passivated surface, hardness HRC42-48, excellent elasticity and fatigue resistance

Key Dimensions: Outer diameter 70mm, inner diameter 60mm, thickness 3mm, opening clearance 1.5mm, compatible shaft diameter φ60mm

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

Matching Relationship: Compatible with 088-2012 radial ball bearings, 087-4766 bushings, 087-1873 Dust ring accessories for axial positioning and anti-loosening of articulated joints.

Suitable for:
Suitable parts: Articulated joint assemblies such as the boom and frame, connecting rod and boom of skid steer loaders and mini excavators. Used for axial positioning of bearings/bushings, preventing axial movement of components, and suitable for frequent load changes and vibration conditions.

Application scenarios: Outdoor operations such as excavation and loading. The elastic retaining ring structure enables quick installation and anti-loosening, reducing the risk of increased clearance and abnormal noise at articulated joints due to vibration, improving component reliability, and reducing maintenance costs.

Core functions: Axially positions bearings/bushings to prevent axial movement of components; elastic structure adapts to vibration conditions, providing continuous anti-loosening force; galvanized passivated surface improves corrosion resistance and extends service life.

Installation and Maintenance Points

Installation: Clean the hinge mounting area and confirm that the bearing/bushing is properly installed; use special snap ring pliers to insert the retainer into the shaft groove, ensuring a complete fit without looseness; check that the retainer and bearing/bushing end faces are tightly fitted with no axial clearance; install in conjunction with the bushing, bearing, and dust ring to ensure smooth and unobstructed assembly operation.

Maintenance: Check the retainer for deformation, breakage, rust, or looseness every 200 hours; replace immediately if any abnormalities are found to prevent axial movement of components that could damage the hinge; regularly clean the retainer surface to remove oil and impurities and maintain its anti-loosening performance.

Replacement: Remove the old retainer and check the shaft groove for wear and deformation; select a retainer of the same model 088-2526, insert it into the shaft groove with snap ring pliers, and ensure proper installation; after installation, test the operation of the hinge to confirm there is no axial movement or abnormal noise.