CAT 2H-6915 0.758\ Inner Diameter Plain Split Bushing

CAT 2H-6915 is a genuine Caterpillar straight-tube steel bushing, commonly used for rotating/oscillating supports in connecting rods, rocker arms, or pins. It is suitable for low-to-medium speed and medium-load conditions. The following are precise original factory specifications and application information, excluding replacement parts.

Core Technical Parameters

Item Details
Part Model: CAT 2H-6915 (Straight Cylinder Flangeless Bushing with Lubrication Hole)
Product Type: General-purpose bushing for engineering machinery, suitable for connecting rod pins, rocker arm shafts, or steering mechanism pins, bearing radial loads, suitable for oscillating/low-speed rotation conditions

Material: Base: Low-carbon alloy steel (1045 steel), surface carburized and quenched (hardness HRC 58–62), precision honing of the inner hole, Ra ≤ 0.2 μm

Key Dimensions: Inner diameter 25.4 mm (1.000 in), outer diameter 34.93 mm (1.375 in), length 28.58 mm (1.125 in), chamfer 0.8 mm, fit tolerance: outer diameter r6, inner diameter H7

Lubrication Structure: Axial lubrication groove + radial lubrication hole (1, diameter 3 mm), suitable for pressure lubrication or grease lubrication, recommended grease is NLGI Grade 2 lithium-based grease

Operating Parameters: Operating temperature -20℃ ~ +150℃, suitable for a maximum linear speed of 1.5 m/s, rated radial load of 45 kN, static load limit of 90 kN. Single weight: Approx. 0.12 kg (0.26 lbs). Surface treatment: Cadmium plating/phosphating of the inner hole for rust prevention and wear resistance; blackened oxidation of the outer surface to improve installation compatibility. Structure and core characteristics: Strong wear resistance and impact resistance: High surface hardness due to carburizing and quenching, suitable for relative oscillation/low-speed rotation of the pin and hole, reducing wear and absorbing impact loads, extending the life of the pin and base.

Precise lubrication design: Axial lubrication grooves + radial lubrication holes ensure uniform grease distribution, reduce the coefficient of friction (μ≤0.08), and avoid erosion caused by dry friction.

Reliable interference fit: Outer diameter r6 interference fit, stable and secure after installation, suitable for long-term use under vibration conditions, ensuring component positioning accuracy.

Compatible Models and Application Scenarios

Compatible Equipment: CAT 305/306 excavators, 904/906 loaders, some small road rollers and forklifts (connecting rods, rocker arms, steering knuckles, or boom pin positions).

Core Purpose: Installed at the boom and stick connecting pins, and at the connecting rod and rocker arm hinges, providing radial support and wear-resistant protection. Suitable for frequent oscillation and low to medium load conditions, preventing direct wear between the pin and the base hole.