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Vehicles should be within the scope of the rated load, if serious overload overloading will lead directly to INA bearings, bearing early failures, more serious may result in personal safety breakdowns and accidents;
Against INA bearings subjected to abnormal impact loads;
Periodically check the INA bearing used, watch the bearing parts if there is abnormal noise and local temperature rise sharply;
Press coverage amount add oil or grease;
According to the vehicle use conditions, at least once in every six months to completely replace oil and carefully check for INA bearings;
INA bearing maintenance condition check: bearing removed with kerosene or gasoline to clean, look closely at the bearings inner and outer cylinder with sliding or crawl, bearing Raceway surface inside and outside presence of flaking, pitting, rolling elements and cage for wear and deformation, according to INA bearing checking general conditions, determine whether the bearing can continue to be used.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 4T-25572/25520 NTN | 38.1 | 82.931 | 25.4 |
| 4T-HM801346/HM801310 NTN | 38.1 | 82.55 | 28.575 |