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Bearing force analysis of tapered roller bearing

2020-06-26 09:18:38

Tapered roller bearing is suitable for bearing radial load, unidirectional axial load combined radial axial load. 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. General tapered roller bearing is allowed to have angle error, but the surface of roller raceway can be allowed to have angle error of 2 ′~ 4 ′. Single row tapered roller bearing single row tapered roller bearing can bear axial load in one direction.

it can limit the axial displacement of the shaft relative to the bearing pedestal in one direction. Even if the plane bearing is under pure radial load, there will be additional axial component force inside the tapered roller bearing. At this time, an equal amount of reverse force is needed to balance with it. Usually, two single row tapered roller bearings with the same structure are installed face to face back to back in two supports. In order to ensure the bearing to obtain good operation state, the tapered roller bearing, like other ball bearings roller bearings, must apply a certain amount of minimum load, especially for high speed, high acceleration speed, under the condition of frequent changes in load direction.

Because of these working conditions, the inertia forces of rollers cages the friction in the wholesale lubricants of Japanese Korean shock absorber bearings will have adverse effects on the rolling of bearings the rotating accuracy of plane pressure bearing suppliers, harmful sliding motion may occur between rollers raceways. The minimum load Fmin required for tapered roller bearings can be estimated by the following formula: Fmin = 0.02c, C is the basic rated dynamic load. A larger minimum load may be required when starting at low temperature when the lubricant viscosity is very high. Usually, the weight of the bearing support the load on the bearing have exceeded the minimum load required. If the minimum load has been reached, additional radial loads, such as axial preloading, must be applied to the bearings to meet the minimum load requirements.