Isn't people often the most important thing? The same applies to bearings. The foundation of a bearing's performance lies in its quality. SKF bearings are manufactured with strict control over bearing steel and cross-roller technology, ensuring top-notch quality. However, even with such high-quality products, some issues may still occur. These problems are typically due to improper usage rather than the bearing's inherent quality. By analyzing the faults and degradation of bearings, we can assess their performance parameters to predict reliability and identify the location, cause, and severity of any abnormalities. This is not just simple fault detection or monitoring—it involves acquiring signals efficiently, processing data, and making manual or automated judgments. To determine an optimal maintenance schedule, it’s essential to conduct fatigue and wear life tests based on failure mechanisms. This comprehensive approach ensures that bearings are maintained effectively and operate at their best. 1. Shaft Tolerance and Bearing Housing Selection: Once installed, SKF bearings should rotate smoothly. If rotation feels stiff, it could be due to excessive shaft size or poor tolerance. If there's a noticeable "sand" feeling when rotating the shaft, it might indicate an overly round shaft or improper tolerance. A good shaft center control system and proper bearing tolerances are crucial, along with maintaining good roundness. 2. Bearing Assembly Method: As high-precision components, SKF bearings require careful assembly. Improper installation can damage the raceways, leading to premature failure. Special molds should be used during assembly, avoiding direct hammering. Only small forces should be applied to the inner ring, and pressing should be done using air or hydraulic pressure. When assembling upper and lower molds, care must be taken to avoid misalignment, which could damage the cross-roller bearings and affect their guide rings. 3. Prevention of Foreign Object Contamination: Bearings installed on rotors should be balanced before installation to avoid contamination from iron filings. It’s recommended to perform dynamic balancing first. While SKF bearings are pre-lubricated, operators often struggle to control the amount of oil or grease. If excess lubricant is left inside, it may migrate into the cross-roller bearing area. Ideally, the bearing housing should remain clean, and no foreign material should be allowed to stay inside. 4. Prevention of Paint Rust: Paint rust is common in sealed motors. After assembly, motors may sound normal but later develop abnormal noises due to severe bearing corrosion. Many manufacturers mistakenly blame the cross-roller bearings, but the real issue is often the insulating paint. At certain temperatures, volatile acids in the paint can corrode metal parts, leading to bearing damage. The solution is to use high-quality varnish and allow it to air dry after assembly. 5. Bearing Life Depends on Manufacturing, Assembly, and Usage: The lifespan of a bearing is closely tied to every stage of production, installation, and operation. Ensuring quality at each step allows for optimal performance and extends the service life of cross-roller bearings. Proper attention to detail throughout the entire process is essential for long-term reliability. Stay informed and stay safe Tag: Bearing Technology, Cross-Roller Bearings Previous: Jewelry Showcase Design Tips Next: Storage Method for High Pressure Excavator Seals Axial Flow Fan Louver Damper,Air Door Structure with Sealing Components,Butterfly Valve for Axial Flow Fan Yuncheng Anhong Enery-saving Explosion-proof Fan Co.,Ltd. , https://www.anhongfengji.com
How to properly install the cross roller bearing to achieve the best rotation effect