CAT 316-8076 BUSHING

CAT 316-8076 is a Caterpillar genuine steel-backed self-lubricating composite bushing, commonly 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 the core original specifications and application information, excluding replacement parts Cat®…

Core Technical Parameters

Item Details
Part Model: CAT 316-8076 (BUSHING – SLEEVE, COMPOSITE)

Product Type: Steel backing + copper-lead alloy + PTFE self-lubricating composite bushing 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

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. 0.92 kg (2.03 lbs)

Key Dimensions: Inner diameter 50 mm, outer diameter 60 mm, length 42 mm, positioning groove width 3 mm, depth 1 mm

Match Requirements: Suitable for shaft diameter tolerances f7, mounting hole tolerance H7, recommended radial clearance 0.06–0.10 mm
Operating temperature -30℃ ~ +100℃
Load capacity: Rated radial load ≥ 80 kN, suitable for smooth rotation and low-impact articulated applications.
Lubrication method: Primarily self-lubricating; supplemental 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: Steel backing provides high-strength support; copper-lead alloy layer enhances load-bearing capacity and thermal conductivity; PTFE self-lubricating layer reduces the coefficient of friction, suitable for articulated parts without continuous lubrication or with poor lubrication conditions, reducing wear and noise (Cat®…).

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 adaptable: Compatible with Caterpillar 307E2, 308E2, 309E2 and other small-tonnage excavators, as well as 908H, 909H, 910H and other medium-sized loaders, for boom and stick hinges, connecting rod and bucket hinges, etc., offering high versatility.

Compatible Models and Application Scenarios

Excavators: Suitable for small-tonnage models such as 307E2, 308E2, 309E2, 310E2, etc., for hinge bushings of the boom, stick, and connecting rod, solving problems of rotational jamming and abnormal noise.

Loaders: Suitable for medium-sized models such as 908H, 909H, 910H, 912H, etc., for hinges between the boom and frame, rocker arm and connecting rod, etc., 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.