CAT 495-6057 BUSHING

CAT 495-6057 is a Caterpillar genuine straight-tube steel-based self-lubricating bushing, suitable for articulated parts such as the boom, stick, and bucket of excavators, loaders, and other equipment. The following are precise original factory specifications and application information; replacement parts are not included.

Core Technical Parameters

Item Details
Part Model CAT 495-6057 (Straight-tube steel-based self-lubricating bushing)
Product Type Special bushing for articulated parts of engineering machinery, suitable for pins and bushing holes, bearing radial loads, reducing friction and preventing uneven wear

Material Base Material: Low carbon steel (SPCC), surface sintered bronze layer (CuSn10), porosity 20%–25%, impregnated with PTFE+MoS₂ solid lubricant

Key Dimensions Inner diameter 70 mm (2.756 in), outer diameter 80 mm (3.150 in), length 100 mm (3.937 in), wall thickness 5 mm, chamfer 1 mm, radial clearance 0.12–0.18 mm

Rated Parameters Applicable working pressure ≤ 45 MPa, applicable temperature -30℃ ~ +150℃, applicable oscillation speed ≤ 0.5 m/s

Physical Properties Density 7.85 g/cm³, hardness Shore B 90, compressive strength 380 MPa, coefficient of friction μ≤0.12. Weight: Approx. 1.18 kg (2.60 lbs). Lubrication: Self-lubricating + periodic replenishment with lithium-based/complex lithium-based grease every 500 hours. Structure and Core Characteristics: Composite Layer Structure: Low-carbon steel base ensures strength, bronze layer stores oil, solid lubricant reduces friction, suitable for heavy-duty articulated swinging conditions.

High Load Capacity and Wear Resistance: The bronze layer and solid lubricant work together to reduce wear on pins and bushings, suitable for heavy-duty parts such as booms and sticks.

Impact and Deformation Resistance: The steel base structure can withstand impact loads and is not easily deformed, suitable for equipment operating vibration and impact conditions.

High Adaptability: Compatible with various Caterpillar small and medium-sized excavators and loaders’ articulated parts, with good versatility and interchangeability.

Compatible Models and Application Scenarios

Compatible Equipment: Boom, stick, and bucket articulation joints of CAT 320/323/326 excavators, 924/926 loaders, and 430/432 mini excavators.

Core Purpose: Installed within the bushing holes of the boom pin, stick pin, and bucket pin, providing radial support and lubrication, reducing wear on the articulation shaft and holes, and ensuring equipment operating efficiency and structural component reliability.