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Bearing installation required in a dry, clean environment under the premise. Should be carefully checked before installation of shaft and housing mating surface, convex shoulder face, grooves and connecting surface processing quality. All surfaces must be carefully cleaned the mating connector and remove burrs, casting bearing surfaces must be Ex unprocessed sand.
Bearing installation should be preceded with gasoline or kerosene to clean and dry before use, and to ensure good lubrication, bearings are generally lubricated with grease, oil lubrication can be. Lubricated with grease should be used free of impurities, oxidation, rust and extreme pressure performance superior grease. Grease filling is bearing and tank volume of 30% -60%, not too much. With sealing structure of the double row tapered roller bearings and water pump bearing grease has been populated, the user can directly use, can no longer be cleaned.
Bearing installation, the bearing must be on the circumference of the ring face applying equal pressure, push the ferrule may not be a direct hit with a hammer prime tool bearing face, so as not to damage the bearings. In the case of a small amount of interference, it can be pressed at room temperature with sleeve bearing ring face, beating with a hammer sleeve, the sleeve will be pressed into the ring balanced. If large quantities of installation, can be used hydraulic press. Press-fitting, should ensure that outer end face and the housing shoulder, inner end face and the shaft shoulder pressed, does not allow a gap.
When a large amount of interference, can be heated oil bath method of heating bearings or sensors to install, bearing heating temperature range is 80 ℃ -100 ℃, the maximum can not exceed 120 ℃. Meanwhile, the application of a nut or other appropriate methods tighten the bearing to prevent the bearing cooling after leaving the ring widthwise shrinkage gap between the shaft shoulder.
Single row tapered roller bearings installed last clearance adjustment should be carried out. Clearance values should be based on the use of different conditions and with the amount of interference to determine the size and detail. Necessary, should be tested to determine. Double row tapered roller bearings and water pump bearing has been adjusted at the factory clearance, installation without further adjustment.
Bearing rotation test should be carried out after installation, first for rotating shaft or bearing housing, bearing without exception, then in power for no-load, low speed, then gradually progress as the functioning of the rotation speed and load, and to detect noise, vibration and temperature l, abnormal, should stop and check operation.
The principle on bearings as we all know, but after removing the bearing to be inherited when used, should use the appropriate removal tool. Removing the interference fit of the ring, only the tension applied to the ferrule, without promise dismounting force transmitted through the body move, or move elements and raceways will be crushed.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7305BDB NSK | 25 | 62 | 17 |
| 7305ADB NSK | 25 | 62 | 17 |