CAT 460-7269 BUSHING

CAT 460-7269 is a Caterpillar genuine steel-backed self-lubricating composite bushing, primarily used in the boom, stick, and connecting rod joints of small and medium-sized excavators and loaders. It is suitable for low to medium loads and smooth rotation conditions. The following are core original specifications and application information, excluding replacement parts.

Core Technical Parameters

Item Details
Part Model: CAT 460-7269 (BUSHING – SLEEVE, COMPOSITE)

Product Type: Steel backing + copper-lead alloy + PTFE self-lubricating composite bushing, without flange / with positioning groove, suitable for hinge pin installation

Material: Steel backing: low carbon alloy steel plate; Intermediate layer: copper-lead alloy; Surface layer: PTFE self-lubricating coating; Positioning groove: same material as steel backing

Surface Process: Steel backing precision deep drawing, copper-lead alloy layer sintering + rolling, PTFE layer spraying and curing, surface roughness Ra ≤ 0.1 μm

Hardness: Steel backing HRC 28–32, copper-lead alloy layer HB 170–210, PTFE layer coefficient of friction 0.05–0.1

Single Weight: Approx. 0.8 kg (1.76 lbs)

Key Dimensions: Inner diameter 45 mm, outer diameter 55 mm, length 38 mm, positioning groove width 3 mm, depth 1 mm mm, suitable for corresponding hinge pins and mounting holes.

Match Requirements: Suitable for shaft diameter tolerance f7, mounting hole tolerance H7, recommended radial clearance 0.06–0.10 mm.

Operating Temperature: -30℃ ~ +100℃

Load Capacity: Rated radial load ≥ 70 kN, suitable for smooth rotation and low-impact hinged applications.

Lubrication Method: Primarily self-lubricating; the PTFE layer reduces lubrication dependence. Replenish lubrication is recommended every 500 hours under harsh conditions.

Sealing Compatibility: Compatible with double-lip seals; can be used with CAT 361-1902 bearings and other components to enhance protection.

Structure and Core Characteristics:
Composite self-lubricating structure: The steel back provides high-strength support; the copper-lead alloy layer enhances load-bearing capacity and thermal conductivity; the PTFE self-lubricating layer reduces the coefficient of friction, suitable for hinged parts without continuous lubrication or with poor lubrication conditions, reducing wear and abnormal noise.

Precise Positioning: Features a positioning groove design for quick positioning during installation, preventing the bushing from rotating within the mounting hole, improving installation efficiency and accuracy, and ensuring stable component operation. Highly Compatible: Compatible with Caterpillar 305.5E2, 306E2, 307E2 and other small-tonnage excavators, as well as 906H, 907H, 908H and other medium-sized loaders, for boom and stick hinges, connecting rod and bucket hinges, offering high versatility.

Compatible Models and Application Scenarios:
Excavators: 305.5E2, 306E2, 307E2, 308E2 and other small-tonnage models; used for hinge bushings of the boom, stick, and connecting rod, solving problems of rotational jamming and abnormal noise.

Loaders: 906H, 907H, 908H, 909H and other medium-sized models; compatible with boom and frame, rocker arm and connecting rod hinges, ensuring flexible and stable rotation during operation.

Core application: To restore the rotational accuracy of hinged parts, solve problems such as excessive clearance, sluggish movement, and uneven wear of parts caused by bushing wear, and adapt to medium and low load and stable operation conditions.