CAT 1T-0231 RETAINER

CAT 1T-0231 is a Caterpillar genuine shaft retainer (circlip), commonly used for positioning shaft ends/bearings in engines, transmissions, or hydraulic pumps to prevent axial movement of components. It is suitable for heavy-duty vibration conditions. The following are precise original factory specifications and application information, excluding replacement parts Cat®…

Core Technical Parameters

Item Details
Part Model: CAT 1T-0231 (Shaft Elastic Retaining Ring, External Snapping Ring)

Material: 65Mn spring steel, quenched and tempered, surface anodized black, hardness HRC 42-48, balancing elasticity and toughness

Key Dimensions: Inner diameter 38.0 mm (1.496 in), outer diameter 45.0 mm (1.772 in), thickness 1.5 mm (0.059 in), opening width 4.0 mm

Single Weight: Approx. 0.012 kg (0.026 lbs)

Tolerances: Inner diameter tolerance 0/-0.1 mm, outer diameter tolerance 0/+0.1 mm, thickness tolerance ±0.05 mm, opening size tolerance ±0.1 mm

Performance Characteristics: Radial spring force ≥ 80 N, extreme operating temperature -40℃ to +150℃, fits shaft diameter 38 mm, mounting groove width 1.6 mm mm
Structure and Core Features

Elastic Snap-on Structure: One-piece molding of 65Mn spring steel, with an open design that allows for elastic opening. It automatically springs back after being inserted into the shaft groove, achieving quick positioning and fixation. Suitable for axial positioning scenarios such as shaft ends and bearing inner rings (Cat®…).

Oxidation Blackening Treatment: A dense oxide film forms on the surface, achieving an IP54 rust prevention rating, suitable for dusty and humid working conditions in construction machinery, extending the service life of the retainer.

Precise Size Fit: The inner diameter precisely matches the shaft groove, while the outer diameter is slightly larger than the shaft diameter. After installation, it fits snugly against the groove wall, preventing axial movement of components and ensuring stable operation of the transmission system.

High Elasticity and Toughness: Quenching and tempering processes ensure stable elasticity of the retaining ring, resisting deformation even after repeated disassembly and assembly, suitable for the multiple disassembly requirements during equipment maintenance.

Compatible Models and Application Scenarios

Compatible Equipment: Engine camshafts and crankshaft ends, gearbox output shaft bearings, hydraulic pump drive shafts, etc., in CAT 320 and 325 series excavators and 950 and 966 series loaders.

Core application: Installed in the annular groove of the shaft, it is used to fix bearings, gears, impellers and other components, limit their axial displacement, absorb vibration and shock, prevent failures caused by loose components, and is suitable for heavy-load and high-frequency vibration conditions.