CAT 460-6046 LINER-BEARIN

CAT 460-6046 is a Caterpillar genuine bimetallic bearing liner, adapted for engine crankshaft connecting rod bearings to reduce friction, withstand heavy loads, and transmit power. The following are core original specifications and application information; replacement parts (Cat®) are not included.

Core Technical Parameters

Item Details
Part Model CAT 460-6046 (BEARING LINER)

Product Type: Bimetallic bearing liner for engine crankshaft connecting rods, suitable for medium and heavy-duty diesel engines, used for the friction pair between connecting rods and crankshaft journals.

Material: Steel backing + Babbitt bimetallic structure. Steel backing material: 1008 low-carbon steel. Babbitt layer thickness: 0.3–0.5 mm, providing good embedding and conformability.

Surface Treatment: The Babbitt layer surface is tin-plated, with a thickness of 5–10 μm, improving fit and anti-seize properties with the journal; surface roughness Ra ≤ 0.2 μm.

Key Dimensions: Inner diameter 76.2 mm (3.0 in), outer diameter 88.9 mm (3.5 in), width 44.45 mm (1.75 in), suitable for standard crankshaft journals and connecting rod bores.

Single Weight: Approximately 0.28 kg (0.62 kg/kg) (lbs)

Match Requirements: Compatible with journal tolerance f7, mounting hole tolerance H7, recommended radial clearance 0.03–0.05 mm

Operating Temperature: -30℃ ~ +180℃, suitable for engine oil lubrication environment

Load Capacity: Rated radial dynamic load 65 kN, rated radial static load 160 kN, suitable for high-load engine conditions

Lubrication Method: Pressure oil lubrication (dependent on engine lubrication system), oil pressure 200–400 kPa, recommended use of CAT special diesel engine oil

Sealing Characteristics: No independent sealing structure, relies on the sealing components of the connecting rod cap and the engine block, protection rating IP54

Structure and Core Characteristics:

Bimetallic Structure Advantages: The steel back provides high strength and rigidity, while the Babbitt alloy layer possesses excellent anti-friction, embedding, and compliance properties, compensating for minor installation errors, absorbing impact loads, and protecting the crankshaft journals and connecting rod bores from wear.

Precision Dimension Control: Strict tolerances for inner and outer diameters ensure compatibility with standard crankshaft journals and connecting rod bores, guaranteeing installation accuracy and motion stability, and preventing abnormal noise or premature wear due to improper clearance.

Anti-Seizure Performance: The Babbitt alloy layer is tin-plated to improve fit with the journal, preventing seizure during dry friction and extending the service life of the bearing and journal.

High Compatibility: Compatible with multiple Caterpillar medium and heavy-duty diesel engines, featuring reliable structure, convenient maintenance and replacement, and ensuring efficient engine power transmission.

Compatible Engine Models and Application Scenarios:
Compatible Engine Models: C13, C15, C18, 3406E, 3412, and other medium and heavy-duty diesel engines.

Compatible Equipment Types: Excavators, loaders, generator sets, marine engines, industrial engines, etc.

Core Application: Used between engine connecting rods and crankshaft journals to reduce friction, bear heavy loads, transmit power, ensure smooth crankshaft rotation, and prevent engine failure due to friction pair failure.