Tapered roller bearing installation method:

1. The inner ring of the four-row tapered roller bearing and the roll neck are generally equipped with a gap. When installing, the bearing is first loaded into the bearing housing, and then the bearing housing is loaded into the journal.

2. The outer ring of the four-row tapered roller bearing and the bearing housing hole are also mechanically matched, and the outer ring A is first loaded into the bearing housing. At the factory, the word {HotTag} symbol is printed on the outer ring, the inner ring and the inner and outer spacers. The bearing box must be loaded into the bearing box in the order of the character symbols. They are not interchangeable to prevent changes in bearing clearance.

3. After all the parts are placed in the bearing housing, the inner ring and the inner spacer, the outer ring and the outer spacer are axially abutted.

4. Measure the gap width between the outer ring end face and the bearing housing cover to determine the thickness of the corresponding gasket.
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Stress Analysis of Tapered Roller Bearings

Tapered roller bearings are suitable for withstanding radial loads, one-way axial loads and combined radial and axial loads. The axial load capacity of tapered roller bearings depends on the contact angle α, that is, the outer ring raceway angle. The larger the contact angle α, the greater the axial load capacity. Generally, tapered roller bearings are not allowed to have angular errors, but the surfaces of the rollers and raceways are specially designed to allow angular errors of 2' to 4'. Single row tapered roller bearings Single row tapered roller bearings can withstand axial loads in one direction.

And can limit the axial displacement of the shaft in one direction relative to the bearing housing. Even under the action of pure radial load, an additional axial component is generated inside the tapered roller bearing. In this case, an equal amount of reverse force is required to balance it. Usually two single-row tapered roller bearings of the same structure are used in the two supports face to face or back to back. In order to ensure good running condition of the bearing, the tapered roller bearing must be applied with a certain amount like other ball bearings and roller bearings. Minimum load, especially for high speeds, high accelerations, or conditions with frequent changes in load direction.

Because of these conditions, the inertial force of the roller and the cage and the friction in the lubricant will adversely affect the rolling and rotation accuracy of the bearing, and there may be a slippage between the roller and the race that may be harmful to the bearing. motion. The minimum load Fmin required for a tapered roller bearing can be estimated by the following formula: Fmin = 0.02C, where C – the basic dynamic load rating, which may be required in the case of a low temperature start or a high viscosity of the lubricant. Minimum load. Normally, the weight of the bearing support itself plus the load on the bearing has exceeded the minimum required load. If the minimum load has not been reached, the bearings must be subjected to additional radial loads, such as axial preloading of the bearings to meet minimum load requirements.

For each product, we are most concerned with the core values ​​of such products and the various factors that influence this core value. For tapered roller bearings, its efficiency is greatly affected by its force. Therefore, it is very important for the force analysis of tapered roller bearings. This is not only the knowledge that users should master, but it may also become the heart of the business to promote such products.
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