Cixi Lanyu Bearing Co., Ltd. is a private enterprise specializing in the production of micro-sized, medium-sized low-noise rolling bearings and various non-standard bearings. Its products include: deep groove ball bearings, cylindrical roller bearings, tapered roller bearings, spherical roller bearings, angular contact ball bearings, thrust ball bearings, thrust roller bearings, spherical plain bearings, high-temperature bearings, and spark plugs, etc. The company is located in the scenic Hangzhou Bay, Henghe Town Industrial Zone, with convenient transportation.

Checking the condition of running machines and preparing a thorough inspection plan has become increasingly important. Bearings are the focus of attention because they are the most important rotating parts in all machines. Condition monitoring is an important part of preventive maintenance. Early detection of bearing damage can avoid equipment downtime during unplanned maintenance due to bearing damage. However, not all machines are equipped with such advanced instruments. In this case, the machine operator or maintenance engineer must be highly alert to the "failure signals" of the bearings, such as noise, temperature and vibration. "Listening", "touching" and "observing" are 3 important factors.

Technical requirements for deep groove ball bearing assembly① The end face of the deep groove ball bearing marked with the code should be installed in a visible direction to facilitate checking when replacing.② The arc radius at the step of the journal or housing hole should be smaller than the arc radius at the corresponding position on the bearing.