CAT 385-3601 BEARING-SLEE

CAT 385-3601 (3853601) is a Caterpillar genuine straight-tube bimetallic sleeve bearing, suitable for heavy-duty articulated joints. The following is precise information (no additional description):

Core Parameters and Information

Item Details
Part Model: CAT 385-3601 Straight-tube Bimetallic Sleeve Bearing

Part Type: Steel-backed bronze alloy bimetallic straight-tube sleeve bearing, with built-in circumferential oil grooves and axial oil holes, capable of withstanding radial loads, suitable for grease lubrication, absorbs shock vibration, and compensates for installation errors.

Material: Steel back: Low carbon steel (thickness 1.2mm); Liner: Tin bronze ZCuSn5Pb5Zn5 (containing 5% tin, 5% lead, 5% zinc, hardness HB75-95); Surface: 3 circumferential oil grooves + 2 axial oil holes, ensuring uniform lubrication.

Key Dimensions: Inner diameter 40.00mm (1.5748in), outer diameter 46.00mm (1.8110in), total length… 35.00mm (1.3780in), wall thickness 3.00mm, oil hole diameter 2.50mm, oil groove width 2.0mm, depth 0.5mm

Structural Features: Straight cylinder without steps, bimetallic bond strength ≥140MPa, withstands -30℃ to 140℃, suitable speed ≤1200rpm, radial load ≤22kN, swing angle ≤±25°

Compatible Structures: Excavator boom-stick hinge bushing, loader rocker arm-linkage bushing, road roller vibratory bushing

Applicable Working Conditions: Medium and low speed, heavy load rotating/swinging parts of articulated and transmission systems in construction machinery, suitable for continuous impact conditions

Compatible Machine Models and Assemblies:

Excavators: CAT 312, 313 (boom-stick hinge bushing assembly, stick-bucket cylinder lug bushing assembly)

Loaders: CAT 906, 907 (Gearbox shift fork shaft sleeve bearing assembly, rocker arm hinge bushing assembly)
Small road rollers: CAT CB34, CB44 (Vibratory shaft sleeve bearing assembly, travel wheel axle bushing assembly)
Compatible assemblies: 312 boom-stick hinge sleeve bearing assembly, 906 gearbox shift fork shaft sleeve bearing assembly, CB34 vibratory shaft sleeve bearing assembly
Installation and fitting points: The sleeve and seat hole should have an interference fit (interference 0.008-0.018mm). Use a special pressing tool for cold pressing installation. Do not strike to prevent deformation of the steel backing and peeling of the bronze layer.

Before installation, clean the seat hole, shaft, and sleeve, ensuring they are free of burrs, oil stains, and rust. Align the oil hole with the oil passage in the seat hole to ensure smooth lubrication. Inspect the sleeve for cracks and delamination.

After installation, radial runout should be ≤0.02mm, clearance 0.040-0.080mm, and operation/oscillation should be smooth without jamming or abnormal noise. Lubrication pressure should be 2.0-3.0MPa.

Use a dedicated puller for disassembly, applying force evenly to avoid damaging the seat hole. Before reuse, check for bronze layer wear (replace if >0.15mm).