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Clutch Release Bearings for Tongli, LGMG, XCMG Mining Wide-body Trucks

The Part No. 125481A (or 125481) is a high-performance Pull-Type Clutch Release Bearing Assembly, specifically engineered for 430mm (17-inch) pull-type clutch systems used in heavy-duty diesel trucks and mining-duty off-highway vehicles. As an essential interface between the clutch fork and the diaphragm spring of the pressure plate, this release bearing ensures smooth and precise disengagement of the engine from the transmission during gear shifting.

Widely adopted across China’s top-tier commercial vehicle platforms — including models from Shaanxi Tonly, Sinotruk HOWO, Shacman, and Foton Auman — this unit delivers reliable operation under extreme conditions such as frequent starts/stops, high torque loads, and dusty mine environments. Featuring a self-aligning angular contact ball bearing design, it compensates for minor misalignments in the actuation system, reducing wear and improving driver comfort.
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  • 125481A

  • Tonly Mining Dump Trucks

Attribute Specification
Part Number 125481A / 125481
Component Name Pull-Type Clutch Release Bearing & Carrier Assembly
Clutch Type Compatibility Pull-Type Diaphragm Spring Clutch
Nominal Size Designed for 430 mm (17") Clutch Systems
Primary Application Heavy-Duty Trucks, Mining Dumpers, Long-Haul Haulers
Mounting Style Sliding on Transmission Input Shaft Pilot Tube
Bearing Type Angular Contact Ball Bearing with Self-Aligning Function
Inner Diameter (ID) ~60 mm
Outer Diameter (OD) ~100 mm (varies slightly by carrier design)
Carrier Material Reinforced Stamped Steel or Cast Steel Bracket
Bearing Material Chrome Alloy Steel (GCr15) – Precision Ground Races
Lubrication Pre-filled with High-Temperature, Extreme-Pressure (EP) Grease
Sealing Type Dual-Lip Rubber Seals (Dust & Contaminant Resistant)
分离轴承-2


分离轴承-1


Parameter Value / Detail
Operating Principle Pull-Type: Actuated when clutch fork pulls bearing rearward to release pressure plate
Dynamic Load Capacity ≥ 8,000 N (axial load rating under continuous operation)
Maximum Speed Up to 6,000 RPM (synchronous with input shaft during shift)
Self-Alignment Capability ±1° – Allows compensation for slight misalignment between fork and release fingers
Temperature Range -30°C to +180°C (short-term peaks up to 200°C acceptable)
Grease Type Lithium complex or polyurea-based, oxidation-resistant, anti-wear additive enriched
Service Life (typical) 150,000 – 300,000 km or 8,000 – 15,000 operating hours (with proper adjustment)
Noise Level (new unit) < 45 dB(A) under standard test conditions
Environmental Resistance Protected against clutch dust, moderate moisture, and mechanical vibration


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