CAT 607-9703 30.1mm Inner Diameter Oil Groove Sleeve Bearing

CAT 607-9703 (6079703) is a Caterpillar genuine straight-tube sleeve bearing with oil grooves, 30.1mm inner diameter, suitable for medium-low speed, medium-load rotating/oscillating parts, used for radial support and lubrication. The following is purely precise information (no additional description):

Core Parameters and Information

Item Details
Part Model: CAT 607-9703 30.1mm Inner Diameter Straight-Tube Sleeve Bearing with Oil Grooves

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

Material: Steel back: Low carbon steel (thickness 1.0mm); Liner: Tin bronze ZCuSn6Pb4 (containing 6% tin, 4% lead, hardness HB70-90); Surface: 4 circumferential oil grooves + 2 axial oil holes, ensuring uniform lubrication.

Key Dimensions: Inner Diameter 30.10mm (1.1850in), outer diameter 36.00mm (1.4173in), total length 32.00mm (1.2598in), wall thickness 2.95mm, oil hole diameter 2.00mm, oil groove width 1.8mm, depth 0.4mm

Structural Features: Straight cylinder without steps, bimetallic joint strength ≥130MPa, withstands -25℃ to 130℃, suitable speed ≤1500rpm, radial load ≤18kN, swing angle ≤±20°

Compatible Structures: Hydraulic motor shaft support, gearbox shift fork bushing, steering knuckle hinge sleeve, fan bracket bushing

Applicable Working Conditions: Medium-low speed, medium-load rotating/swinging parts of hydraulic, transmission and travel systems of construction machinery, suitable for intermittent impact conditions

Compatible Models and Assemblies:
Excavator: CAT 307.5, 308.5 (Hydraulic motor shaft sleeve bearing assembly, boom cylinder lug bushing assembly)

Loaders: CAT 903, 904 (Gearbox shift fork shaft sleeve bearing assembly, rocker arm hinge bushing assembly)

Small road rollers: CAT CB24, CB34 (Vibratory shaft sleeve bearing assembly, travel wheel axle bushing assembly)

Compatible assemblies: 307.5 Hydraulic motor shaft sleeve bearing assembly, 903 Gearbox shift fork shaft sleeve bearing assembly, CB24 Vibratory shaft sleeve bearing assembly

Installation and Fitting Points: The sleeve and seat hole should have an interference fit (interference 0.006-0.015mm). 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, and the fit clearance should be 0.035-0.070mm. Operation/oscillation should be smooth without jamming or abnormal noise. Lubrication pressure should be 2.0-3.0MPa.

Disassembly should be performed using a dedicated puller, applying force evenly to avoid damaging the seat hole. Before reuse, check the bronze layer wear (replace if >0.15mm).