CAT 003-5681 RING

CAT 003-5681 is a Caterpillar genuine carbon steel locating ring (pure original factory information, no additional description):

Core Parameters and Information

Item Details
Part Model: CAT 003-5681 (0035681) Ring

Part Type: Locating Ring (Shaft Retaining Ring / Spacer Ring), used to fix the axial position of bearings, gears, and other components, limiting movement.

Material: Carbon Steel, surface treated with blackening for rust prevention.

Key Dimensions: Inner diameter 120.00 mm, outer diameter 150.00 mm, thickness 5.00 mm, chamfer 1×45°

Structural Features: Fully circular ring, no notches, no threads, fixed by interference fit or end face pressing.

Surface Treatment: Blackening (oxidation) treatment to improve rust resistance.

Matching Method: Interference fit with shaft (H7/h6), end face tightly fits adjacent parts.

Operating Temperature: -40℃ ～ +150℃

Weight: 0.58 kg Compatible Models and Assemblies

Excavators: CAT 323D2, 326D2, 329D2 (slewing bearing, travel gearbox input shaft positioning)

Loaders: CAT 950M, 966M (transmission second shaft, drive axle differential positioning)

Matching Parts: 003-5681 Positioning Ring, Bearing, Shaft End Plate, Fastening Bolts

Installation and Fitting Points

Clean the journal and installation location, remove burrs and rust, journal roughness Ra≤1.6μm.

Cold fitting or hot fitting: For cold fitting, press smoothly with a press; for hot fitting, heat the ring to 80-100℃ and quickly fit it onto the shaft.

Post-installation inspection: Ring-shaft coaxiality ≤0.05 mm, end face runout ≤0.03 mm, no deformation or damage.

Ensure tight fit with adjacent parts, guaranteeing reliable axial positioning.