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Connecting Rod Bearing Information

Product Types:

KT-S (Large End Needle Roller Bearing):

Description: Suitable for the large end of the engine crankshaft connecting rod. Needle roller bearing operates eccentrically around the engine output shaft.

Material: Cage made of SCM 415 chromium molybdenum alloy steel, treated for enhanced fatigue resistance.

KV-S (Small End Needle Roller Bearing):

Description: Designed for the small end needle roller bearing of the engine crankshaft connecting rod, commonly seen in two-stroke engine designs.

Material: Cage made of SCM415 chromium molybdenum alloy steel, with high rigidity to withstand impact load at engine burst.

KU/KUZ (High Load, High-Speed Needle Roller Bearing):

Description: Suitable for high load, high-speed engine crankshaft connecting rod large end needle roller bearings.

Material: High rigidity design with more needle rollers than the KT type, suitable for extreme conditions.

Advantages of PEEK Coating:

Enhanced Wear Resistance: PEEK coating offers significantly more wear resistance compared to traditional silver or copper-coated bearings.
Extended Lifespan: Debris becomes embedded within the PEEK coating layer during engine operation, thereby extending the lifespan of connecting rods and crank pins.
Reduced Damage: Traditional bearings often suffer serious damage due to debris getting stuck between the connecting rod, cage, and crank pin, leading to wear on the connecting rod race or even the crank pin itself. PEEK coating helps mitigate this issue by embedding debris within its layer.