Product Advantages

1. OEM Standard High-precision Matching Produced in strict accordance with Komatsu SAA6D107E engine’s original factory drawings and micron-level tolerance standards, the inner diameter, outer diameter, thickness and matching clearance are perfectly consistent with original parts. It achieves a tight fit with crankshaft and connecting rod without secondary processing, ensuring quick and accurate assembly.

2. Durable Composite Structure DesignThe high-strength steel backing has excellent fatigue resistance and impact load capacity, able to withstand the long-term high load of heavy-duty engineering machinery engines; the antifriction alloy layer has good plasticity and bonding strength, and the multi-layer structure is firmly combined without delamination or falling off.

3. Premium Material & Advanced Forming Process Adopts high-purity antifriction alloy raw materials and precision rolling forming technology, the bearing surface finish reaches a high-precision level, which is conducive to oil film formation and retention; the edge is chamfered and deburred to avoid scratching the mating journal surface during installation and operation.

4. Strong Adaptability to Harsh Working Conditions Passed professional performance tests such as high-temperature load, continuous fatigue vibration, wear resistance and oil film retention. It can work stably in harsh working environments such as engine high load, frequent start-stop and severe vibration, fully meeting the operation requirements of SAA6D107E heavy-duty engine.

5. Long Service Life & High Cost Performance The product performance is close to Komatsu original genuine parts, the wear rate is reduced by more than 45% compared with ordinary bearings, effectively extending the service life of the bearing and matching components. It reduces the frequency of engine maintenance and replacement, lowers the downtime loss of engineering machinery, and cuts the overall operation and maintenance cost.

Installation & Maintenance Tips

1. Clean the bearing installation position (crankshaft journal, connecting rod bearing seat, camshaft bearing seat) before installation, remove oil stains, rust, burrs and impurities, and ensure the mating surface is smooth, flat and free of obvious scratches.

2. Install the bearing in the correct direction according to the factory marking (if any), avoid reverse installation; press the bearing into the bearing seat evenly with a special press tool, do not strike hard to prevent bearing deformation, alloy layer falling off or damage to the mating surface.

3. Ensure the engine lubricating oil passage and oil groove are unobstructed before starting the engine, pre-lubricate the bearing surface with clean engine oil to form an initial oil film, and avoid dry friction during cold start.

4. Fasten the bearing cover and connecting rod bolts in diagonal sequence according to the specified torque in the SAA6D107E engine manual, avoid over-tightening or loose fastening to prevent uneven bearing stress and abnormal wear.

5. Regularly check the engine oil quality, oil level and oil pressure, replace the lubricating oil and oil filter according to the maintenance cycle; if abnormal engine noise, violent vibration or sudden oil pressure drop is found, stop the machine for inspection immediately to avoid bearing damage and further expansion of engine faults.