CAT 175-4983 49.1mm Inner Diameter Shaft Retaining Ring

CAT 175-4983 is a Caterpillar carbon steel outer retaining ring (shaft elastic retaining ring) used for shaft end/shaft groove positioning to prevent axial movement of bearings, bushings and other components. It is suitable for pins, drive shafts and hydraulic cylinders of excavators, loaders and other equipment, and is a key fastener Cat® Parts to ensure the axial fixation of components. The following is structured technical and application information:

Core Technical Parameters

Item Details
Basic Attributes
Model 175-4983, Type: Shaft elastic retaining ring (outer retaining ring), Material: Tempered carbon steel, Surface: Galvanized passivation (96h salt spray rust prevention), Single weight: Approx. 0.02 kg, Suitable temperature: -30℃ to +120℃, Installation method: Elastic snap-fit ​​into shaft groove, no additional fasteners required (Cat® Parts)

Key Dimensions
Free diameter: 65 mm, Shaft diameter: 60 mm, Groove diameter: 58.5 mm, Groove width: 2.5 mm, Retaining ring thickness: 2.0 mm, Radial wall height: 3.0 mm, Opening clearance: 1.2 mm, Suitable shaft groove diameter: 58.5 mm (tolerance ±0.1 mm), Groove width: 2.5 mm (tolerance ±0.05 mm)

Compatible Models and Parts
Compatible with Cat 320D/323D excavator stick pin bearing positioning, 950GC Loader boom linkage shaft end fixing, 420F2 bulldozer bucket cylinder piston rod retaining ring, 1 piece per shaft, for pure axial positioning, suitable for speeds ≤3000 rpm and axial loads ≤5 kN.

Performance Parameters: Tensile strength ≥1000 MPa, elastic modulus 206 GPa, shear strength ≥600 MPa, rust resistance meets ISO 9227-96h salt spray standard, can work stably in dusty and muddy conditions.

Structural and Performance Advantages:

Reliable Material: Made of tempered carbon steel, combining high strength and elasticity, it can stably fit into the shaft groove, withstand axial positioning force for a long time, and is not easily deformed or broken (Cat® Parts).

Surface Protection: Zinc-plated passivation treatment enhances rust resistance, suitable for harsh outdoor working conditions of construction machinery, and extends the service life of Cat® Parts.

Easy Installation: Flexible opening design, can be quickly inserted into the shaft groove with retaining ring pliers, high installation efficiency, easy disassembly, and convenient maintenance and replacement of Cat® Parts.

Precise Positioning: The shaft groove is precisely matched to its dimensions, with an axial clearance ≤0.1 mm after insertion, effectively preventing axial movement of components and ensuring equipment operational accuracy.

Installation and Maintenance Points: Before installation, clean the shaft groove to remove burrs and oil stains. Check the retaining ring for deformation and cracks. Use special external retaining ring pliers to pry open the retaining ring and insert it into the shaft groove, ensuring complete embedding and a tight fit with the bottom of the groove without any looseness.

Maintenance Every 1000 Hours: Check the retaining ring’s elasticity, surface corrosion, and groove fit. If deformation, breakage, or severe corrosion is found, replace it immediately to prevent axial movement of components that could lead to malfunctions.

Prioritize original parts. Aftermarket parts may have insufficient material strength or dimensional deviations, easily leading to loose installation or breakage, affecting positioning accuracy.