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72291 XCMG GR2605 motor grader thrust bearing
- Model: 72291
- Type: Thrust bearing / Plane end bearing
- Material: High-carbon chromium bearing steel GCr15
- Surface Treatment: Double-sided precision grinding with high flatness and anti-rust treatment
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Product Details:
72291 XCMG GR2605 motor grader thrust bearing
72291 thrust bearing is a special plane pressure-bearing component for the transmission system of construction machinery, mainly used to bear axial load and provide end support between rotating and fixed parts. Made of high-hardness wear-resistant material with precision surface grinding, it features strong compression resistance and low friction coefficient, effectively reducing end friction and wear under heavy-duty, impact and intermittent rotation conditions to ensure smooth operation.
Technical Parameters
- Model: 72291
- Type: Thrust bearing / Plane end bearing
- Material: High-carbon chromium bearing steel GCr15
- Surface Treatment: Double-sided precision grinding with high flatness and anti-rust treatment
- Hardness: HRC 60～64, wear-resistant and compression-resistant without deformation
- Structure: Annular sheet structure with high concentricity and flat end faces
- Operating Temperature: -40℃～120℃
- Load Characteristic: Specially designed for axial pressure load, not for radial load
Application Scenarios
Suitable for gearboxes, clutch assemblies, planetary gear trains, sun gear ends, shift mechanisms and various axial thrust positions of construction machinery such as loaders, graders, rollers and forklifts. Installed between rotating and fixed parts to bear axial pressure and reduce direct end friction, adapting to heavy-duty, vibration and intermittent operation conditions.
Common Faults & Troubleshooting
- Thinning and increased clearance: Caused by long-term axial pressure friction. Replace 72291 thrust bearing.
- Pitting and spalling: Resulted from overload or poor lubrication. Replace with new bearing and improve lubrication.
- Cracking and breakage: Caused by excessive impact load or uneven installation. Replace bearing and check installation surface flatness.
- Running heat and abnormal noise: Due to serious bearing wear or foreign matter intrusion. Replace timely and clean installation position.
- Insufficient lubrication: Caused by blocked oil hole or offset position. Clear oil passage and reinstall correctly.
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