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To ensure the long life of INA bearings cannot meet the requirements for general installation and adjustment, should focus on the following measures:
(1) by its interference, the INA bearing surface size group, every group size in sequence according to their internal clearance of the bearing arrangement. The corresponding shaft or housing bore diameter for the same group. Interference fit size bearing surface with large-diameter shaft or bore group matching, matching the dimensions corresponding to the diameter of the small group. Match each of the corresponding group, INA bearings for tight clearance with the clearance of small bearings for more cooperation. Such matching of results, makes in with batch installed of machine in the, bearing of tie had Ying more consistent, both but pine, also but tight, tour gap also more uniform consistent, to guarantee INA bearing installed Hou of prestressed expedient, and avoid Peristaltic, and rings expansion crack, and due to tour gap improper and produced of impact, and vibration or fever, and hold collection, non-normal bearing failure of occurred.
(2) supported at both ends of the shaft and bore the same axis and perpendicular to the supporting end-of-degree guarantee to prevent additional loads. If possible, outside the bearing load easier for mechanical components should be slightly away from the damaged end INA bearings, while axis and rotation systems as smooth as possible.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 4T-3580/3525 NTN | 38.1 | 87.312 | 30.886 |
| 4T-3875/3820 NTN | 38.1 | 85.725 | 30.162 |