(TUV-Certified Process per ISO Standards, 2025 Edition)

1. Preload Dynamic Calibration

• Implement three-stage hydraulic nut loading (20%-50%-100% sequence) for paired bearings

• Maintain axial clearance at 0.002-0.008mm using laser alignment systems (ISO 12228-1 compliance)

2. Thermal Field Management

• Heat mounting temperature ≤120℃ (SKF research shows: +10℃ reduces cage lifespan by 35%)

• Monitor housing temperature gradient <2℃/min via infrared thermography

3. Cleanliness Control

• Assembly environment must meet ISO 14644-1 Class 7 cleanliness

• Perform triple cross-flushing with dedicated rinse oil (22-32cSt viscosity) before grease injection

4. Dynamic Verification

• Stepwise no-load testing: 200rpm→800rpm→1500rpm, vibration ≤ ISO 10816-3 Grade B

• Detect abnormal harmonics (especially 2×FN components) via frequency response analyzer

5. Smart Maintenance Interface

• RFID-enabled bearings (e.g. NSK Smart Bearing Series) allow torque history retrieval via PDA scanning for full lifecycle traceability