Dual Jackbolt Anti-Loosening Technology in XCMG Hydraulic Bidirectional Lock (Part No. 803000435)
The dual jackbolt anti-loosening mechanism in XCMG's bidirectional lock (803000435) is engineered to prevent bolt slippage under high-frequency vibrations or shock loads. Key features include:
Redundant Locking Design: Two hardened alloy steel jackbolts (grade 12.9) are diagonally threaded into the main locking bolt, creating a triangular force distribution to counteract rotational torque generated by pressure fluctuations (≤45 MPa).
Preload Synchronization: Torque-controlled tightening ensures uniform preload (typically 200–300 N·m) on both secondary bolts, eliminating micro-gaps between threads and minimizing stress fatigue.
Anti-Rotation Teeth: Serrated washers integrated with the jackbolts bite into mating surfaces, resisting self-rotation caused by hydraulic pulsation or thermal expansion.
Lubrication Retention: Micro-grooves on bolt threads retain high-viscosity anti-seize compounds, reducing friction-induced heat (critical in -30°C to 100°C environments) and preventing galling.
Product Deatials
| Part Name | Hydraulic Bidirectional Lock | Part Number | 803000435 |
| Model | SO-K10L-00B | Application | XCMG Grane |
| Package Size | / | GW | 6.5KG |
| MOQ | 1 PC | Brand Name | CBP |
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