CAT 094-2663 RETAIN RING

CAT 094-2663 (0942663) is a axial retaining ring for Caterpillar construction machinery hydraulic systems/chassis. It is used for axial positioning of bearings, cylinder pistons, or valve cores, preventing axial movement of components, ensuring assembly accuracy and operational stability, and is a critical fastener in hydraulic and transmission systems.

Core Parameters

Item Details
Part Model: CAT 094-2663 (0942663) Retaining Ring

Type: Shaft elastic retaining ring (E-type/helical type), suitable for shaft groove installation, including mounting clamp holes

Material: 65Mn spring steel, heat treatment + surface oxidation/galvanizing, excellent elasticity and wear resistance, suitable for medium and heavy-duty working conditions

Key Dimensions: Free inner diameter approx. 65mm, thickness approx. 2.5mm, groove width approx. 2.6mm, suitable shaft diameter approx. 70mm, single weight approx. 0.08kg

Compatible Models: Hydraulic pumps/motors, cylinders, chassis bearings of CAT 320, 323, 326 excavators, 950, 962 loaders, etc.

Matching Relationship: Matched with shaft grooves, bearings/pistons/valve cores; typically 1-2 rings per shaft/cylinder. One unit for axial positioning.

Adaptation and Application
Adapted Parts: Hydraulic pump plunger assemblies, cylinder pistons, chassis bearing inner rings, valve cores, etc. Installed in the shaft groove to prevent axial movement of components, ensuring fitting accuracy and sealing/transmission stability.

Application Scenarios: Urban construction, road construction, earthmoving operations, etc. Adapted to the hydraulic and transmission systems of small and medium-sized excavators and loaders to prevent component movement that could lead to leakage, abnormal noise, or decreased accuracy.

Core Functions: Axial positioning and limiting, preventing movement of bearings, pistons, and other components, ensuring assembly accuracy, sealing performance, and transmission efficiency, and extending component life.

Installation and Maintenance Points
Installation: Use shaft retaining ring pliers to pry open the retaining ring and insert it into the shaft groove, ensuring complete insertion without jamming. After installation, check for axial movement of the component and ensure the retaining ring fits tightly in the groove.

Maintenance: Check the retaining ring’s elasticity and groove fit every 200 hours. Replace immediately if deformation, breakage, or decreased elasticity is observed to prevent component displacement and malfunctions.

Replacement: Prioritize original parts, verify the shaft diameter and groove dimensions, and test the relevant systems after installation to ensure normal operation, no abnormal noise, and no leakage, thus ensuring stable equipment operation.