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71638 XCMG GR2605 motor grader spring retaining ring
- Model: 71638
- Type: Shaft / Bore elastic retaining ring (spring snap ring)
- Material: 65Mn spring steel
- Heat treatment: Quenching + medium temperature tempering
- Surface hardness: HRC 44–52
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Product Details:
71638 XCMG GR2605 motor grader spring retaining ring
71638 is a special elastic locking component for construction machinery brake mechanisms, gearboxes and hydraulic valve assemblies. It is mainly used for axial limit and anti-falling of springs, pins, pistons and shaft parts, working with spring sleeves, pins or piston assemblies to prevent spring movement, falling off or axial displacement. Made of high-elastic spring steel with stamping forming, it has uniform elasticity and stable clamping force, not easy to loose under vibration, impact and oil conditions, ensuring reliable assembly.
Technical Parameters
- Model: 71638
- Type: Shaft / Bore elastic retaining ring (spring snap ring)
- Material: 65Mn spring steel
- Heat treatment: Quenching + medium temperature tempering
- Surface hardness: HRC 44–52
- Fit size: Standard for brake piston and pin shaft
- Surface treatment: Blackening for rust prevention
- Operating temperature: -40℃～120℃
- Elastic performance: High resilience, fatigue resistance, uniform clamping force
- Installation: Expanding type, suitable for snap ring pliers
Application Scenarios
Suitable for loaders, graders, rollers, forklifts and other construction machinery, mainly used in:
- Brake piston spring limit, spring sleeve axial fixing
- Gearbox pin, shift fork shaft, control valve shaft positioning
- Hydraulic valve and clutch mechanism spring & bushing anti-falling
Adapts to vibration, oil immersion and frequent reciprocating motion to prevent parts loosening.
Common Faults & Troubleshooting
- Loosening & falling off: Caused by elastic fatigue or improper installation. Replace 71638 and reinstall correctly.
- Fracture failure: Due to excessive impact or material fatigue. Replace with new retaining ring and check assembly clearance.
- Elastic failure: Elastic attenuation caused by long-term high temperature. Replace retaining ring and improve cooling & sealing.
- Assembly jamming: Twisted or deformed during installation. Replace or correct retaining ring to ensure proper fit.
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