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The length of bearing service life, typically under the influence of material and process these personal factors.
INA bearings material is to a large extent determine the service life of the bearings, has bearing metallurgical quality is the cause of most major causes of premature failure of rolling bearings. INA bearing material impact on life, huge advances in metallurgy technology, after INA bearing steel and other materials appeared, has been greatly improved.
INA bearing failure analysis, bearing failure caused by raw materials ratio has dropped significantly, but also continue to be important causes of bearing failure, major constraints are INA bearing service life.
INA bearing complex manufacturing process has to go through many processes can achieve a finished product, including forging, heat treatment, machining and grinding process of technological capability and complete quality will affect the life of INA bearing and effect, especially heat treatment and grinding, but also many proximate causes of bearing failure, need to be production enterprises attach great importance to.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| RLM1817 NSK | 18 | 25 | 17 |
| RLM1815 NSK | 18 | 25 | 15 |