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Rolling bearings is the mass production of mechanical parts, and manufacturing precision is very strict, technically high degree of specialization, for the vast majority of the INA bearings varieties readily available, should be more cost-effective to buy than to repair, only in the following cases , before considering the bearing fix the problem, namely:
(1) large factories use the same type of bearing failure modes for the rolling surface wear, fatigue or micro-abrasion, especially damaged parts cage or rolling elements, rings or gaskets still repair value;
(2) large and extra large bearing on the brink of failure or lapse Although parts no significant damage or valuables bearings must try to extend its useful life;
(3) some really difficult to buy into the bearing varieties, failure spare parts had to repair, especially INA bearings;
(4) bearing minor injuries, such as inventory period minor water rust, as well as during transport slight micro-abrasion, such repair easy gesture.
In addition to the economy, the INA bearing repair technical, which requires the repairer to fully understand the technical requirements of the bearing, bearings and parts thereof on the structure, process and material characteristics, it would be difficult to ensure the bearing repair desirable effect.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7900C NSK | 10 | 22 | 6 |
| 7900A5 NSK | 10 | 22 | 6 |