CAT 380-7369 BEARING-SLV-GD

CAT 380-7369 is a Caterpillar genuine GD series general-purpose straight sleeve bearing, suitable for pin joints of loaders, excavators, booms, and rocker arms, used in medium to heavy-duty, low-speed oscillating applications. The following is raw data and does not include replacement parts information (Cat® Parts).

Core Technical Parameters (Raw Data)

Item Details
Basic Attributes
Model 380-7369, Type GD General Purpose Heavy-Duty Straight Sleeve Bearing, Material Steel Back + Sintered Bronze Alloy (CuSn10Pb10), Single Weight 0.92 kg, Applicable Working Conditions: Heavy Load, Low-Speed ​​Oscillation, Dusty Environment, Working Temperature -30℃ to +140℃, Rated Bearing Pressure ≥220 MPa, Friction Coefficient ≤0.08 (Oil Lubrication), Applicable Pin Diameter φ44-45 mm, Used for Rotational Support of Pin Joints in Booms, Rocker Arms, etc.

Key Dimensions (Metric / Imperial)
Inner Diameter 44.45 mm (1.750 in, Tolerance +0.02/-0 mm), Outer Diameter 57.15 mm (2.250 in, Tolerance +0.03/-0 mm), Overall Length 63.50 mm (2.500 in, Tolerance ±0.1 mm), Wall Thickness 6.35 mm (0.250 in, tolerance ±0.02 mm), no oil holes/grooves, compatible with mounting hole diameters φ57.15-57.18 mm, interference fit 0.03-0.05 mm

Performance Parameters: Steel backing tensile strength ≥500 MPa, bronze layer hardness HB 80-100, load fatigue life ≥1.0×10⁶ cycles (180 MPa load), wear rate ≤0.01 mm/1000 hours (oil lubrication), mounting pressure ≤80 kN, compatible with Cat HD EP 2 grease.

Structure and Compatibility Characteristics:

Composite structure: The steel backing provides rigid support, and the bronze alloy layer has self-lubricating and wear-resistant properties, suitable for low-speed, heavy-load joints without continuous lubrication, reducing wear on pins and bearings.

Precise Fit: The oil-free/oil-groove design accommodates pins and mounting holes of specific diameters. An interference fit ensures no loosening after installation, guaranteeing stable equipment operation. It precisely matches original Cat® Parts pins and mounting holes.

Working Condition Adaptability: Suitable for harsh working conditions such as outdoor and dusty environments. The bronze alloy layer can accommodate small amounts of impurities, reducing the risk of jamming and extending service life.

Installation and Maintenance Points (Original Data)

Installation: Clean the mounting holes, pins, and bearing surfaces (free from oil, rust, and burrs). Use cold-press installation (pressure ≤80 kN). After installation, the bearing end face should be flush with the mounting surface, without skewing. The pin should rotate freely without jamming. The clearance between the bearing and the mounting hole should be ≤0.01 mm.

Maintenance: Check lubrication every 400 hours to ensure sufficient Cat HD EP 2 grease between the pin and bearing. Regularly check bearing wear; replace when the inner diameter wear exceeds 0.12 mm. For long-term storage, apply anti-rust oil and seal to prevent moisture.