CAT 585-0337 Straight Sleeve Bearing

CAT 585-0337 is a Caterpillar genuine steel-backed bronze composite straight sleeve bearing, suitable for journal supports in transmission systems such as gearboxes and drive axles. It is used to limit radial displacement and withstand stable loads. The following is pure raw data and does not include replacement parts information.

Core Technical Parameters (Raw Data)

Item Details
Basic Attributes
Model 585-0337, Material: Steel backing + CuPb10Sn10 bronze alloy, Single weight 1.26 kg, Suitable for low-to-medium speed and medium-to-heavy load rotational conditions, Operating temperature -40℃ to +150℃, Rated dynamic load ≥220 kN, Rated static load ≥380 kN, Suitable for shaft diameter φ80 mm, Used for gearbox input shaft, drive axle differential journal, and drive shaft support

Key Dimensions (Metric/Imperial)
Inner diameter 80.0 mm (3.150 in, tolerance 0/-0.025 mm), Outer diameter 100.0 mm (3.937 in, tolerance 0/-0.035 mm), Overall length 90.0 mm (3.543 in, tolerance ±0.15 mm), Wall thickness 10.0 mm, Steel backing thickness 2.0 mm, Bronze layer thickness 8.0 mm diameter, inner bore roughness Ra≤0.4 μm, shaft interference 0.015-0.025 mm, clearance with mounting hole 0.012-0.022 mm

Performance Parameters: Hardness HB 90-110, coefficient of friction ≤0.08 (oil lubrication), limiting speed 800 rpm (oil lubrication), permissible radial load ≤180 kN, compatible with Cat DEO-ULS 15W-40 engine oil or Cat gear oil. Steel backing enhances load-bearing capacity, bronze layer reduces friction and wear, providing excellent impact and corrosion resistance.

Structure and Compatibility Characteristics:

Advantages of Composite Materials: The steel backing provides high-strength support, the bronze alloy layer has excellent friction reduction and embedding properties, can accommodate small impurities, is suitable for the impact loads and oily environments of transmission systems, and is not easily deformed or worn over long-term use.

Straight-tube flangeless structure: Fixed within the mounting hole via interference fit, ensuring journal coaxiality, reducing vibration and noise, suitable for space-constrained components such as gearboxes and drive axles, with slow radial clearance increase over long-term use.

Operating Condition Adaptability: Suitable for low-speed, stable load rotational conditions in transmission systems, oil-resistant and anti-aging, suitable for harsh environments such as dusty and humid conditions, and compatible with Cat universal lithium-based grease or gear oil lubrication.

Installation and Maintenance Points (Original Data)

Installation: Clean the journal and mounting hole (free of oil and burrs), cold press installation (pressure ≤180 kN), ensuring the end face is flush with the mounting surface, and that the shaft rotates freely without jamming. Control the interference fit and clearance according to the dimensional parameters.

Maintenance: Check lubrication and clearance every 1800 hours. Replace if radial clearance exceeds 0.25 mm; for long-term storage, apply anti-rust oil and seal to prevent oxidation of the steel backing and bronze layer.