Detailed Description
Coal Mill Bearing Bush is the bearing core of coal pulverizing systems, providing stable rotation and reducing equipment wear. Made from high-chromium cast iron or ceramic composite, it features surface hardening with a hardness of HV 400-480, suitable for 150°C to 400°C. It outperforms in impact resistance and self-lubrication, used in thermal power plant coal mills and waste-to-energy facilities.
|
Step |
Content |
Method/Tool |
Standard/Example Result |
|
1. Initial Inspection |
Record cracks/wear |
Visual + Record Log |
No visible cracks |
|
2. Appearance Check |
Surface damage eval. |
Visual + Magnifier |
No scratches |
|
3. Dimension Measurement |
Dimensional verification |
Precision Gauges |
Tolerance ±0.03mm |
|
4. Flaw Detection |
Internal defect check |
Radiographic Testing |
No internal cracks |
|
5. Rough Machining |
Initial processing + bolt fitting |
CNC Machine + Fasteners |
Roughness Ra1.5 |
|
6. Stress Relief |
Heat treatment to reduce stress |
Annealing Furnace |
92% stress relief |
|
7. Finishing |
Precision surface treat. |
Precision Cutting |
Tolerance ±0.01mm |
|
8. Final Inspection |
Quality confirmation |
Magnetic + Ultrasonic |
100% Pass |
Repair Process Table:
Professional Advantages: China factory OEM compatibility, 25% cost savings vs. OEM, accelerated delivery, supports international EPC clients.
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