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1, when the bearing vibration may occur when local damage: due to operation or installation errors, small part of the raceways and rolling elements may be damaged. Running, scroll past the damaged parts will have a specific vibration frequency of bearing. Vibration frequency analysis to identify damaged bearing parts.
2, when the no wave deformation of the bearing vibration may occur when: between the bearing ring and the bearing or shaft drive fit case, bearing rings might shape matching and deformation of the adjacent parts. If deformation occurs, running may produce vibrations. Therefore, and drive shaft housings are machined to required tolerances are critical.
3, also in the applications also have a vibration, in many applications, bearing stiffness and rigidity of the structure around the same. Because of this feature, as long as the proper selection of the bearing (including preload and clearance) and its application in the configuration, it is possible to reduce vibrations in the application. According to site conditions and conditions of use and the environment dimension, precision, combined with suitable bearing is a prerequisite for bearing life assurance and feasibility. Need to check the status of machines running, the bearing is the focus of attention, and prepare a thorough screening programmes has become increasingly important. Because it is all most important condition monitoring of rotating machinery parts to prevent bearing damage, maintenance equipment to prevent unplanned downtime in the early detection of bearing damage caused at home during an important component. But not all the machines are equipped with this advanced equipment. In this case, the machine operator or maintenance engineers must adhere to bearing fault signal alarm.
Bearing in running process in the, sometimes bearing surface Zhijian will squeeze into foreign hard particles or hard quality foreign body or metal surface of mill chip, this will is bearing caused plow Groove shaped of abrasions, these hard foreign body through lubrication media entered bearing internal, as bearing of continued running, local friction health hot, easy caused friction surface local deformation and friction micro welding collection phenomenon, even may appears local melted of situation, last caused occlusal phenomenon.
Bearing fault causes defective overload two factors when plus loads more than material fracture strength limit resulting parts called overload fracture, bearing overheating can also occur during running organizations and local burn and other defects, defects caused by faults. We can instrument to check what kind of fracture, in most cases, majority of those bearing failure caused by overload failure.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7213ATYNDBLP4 NSK | 65 | 120 | 23 |
| 7213A5TYNDBLP4 NSK | 65 | 120 | 23 |