Spherical Roller Bearings 21305 21306 21307 21308 21309 21310 21311 21312 21313 21314 21315

Spherical roller bearing

Spherical roller bearings have two rows of rollers that are primarily subjected to radial loads and can also withstand axial loads in either direction. It has a large radial load capacity and is especially suitable for working under heavy or vibration loads, but cannot withstand pure axial loads. The bearing outer ring raceway is spherical, with two rows of symmetrical spherical rollers, the outer ring has a common spherical raceway, and the inner ring has two raceways inclined at an angle to the bearing axis, which has a good tone. Heart performance, the bearing can still be used normally when the shaft is bent or installed with different hearts. Generally, the allowable centering angle is 1~2.5 degrees. The bearing capacity of this type of bearing is large, in addition to bearing the radial load, the bearing is also It can withstand the axial load of two-way action and has better impact resistance. Generally speaking, the adjustable rotation speed of the spherical roller bearing is low. In order to improve the lubrication of the bearing, the user can provide the spherical roller bearing with an annular oil groove and three oil holes in the outer ring, which is represented by the bearing rear code /W33. Spherical roller bearings with inner ring oil holes are also available according to the user's requirements. In order to facilitate the loading and unloading and replacement of bearings, the tapered roller bearing with inner bore is also available. The taper taper is 1:12. , the future code is K, in order to meet the requirements of special users can also provide bearings with a taper of 1:30, the rear code is K30. The tapered bearing of the inner hole can be directly mounted on the tapered journal by a lock nut, or the bearing can be mounted on the cylindrical journal by means of an adapter sleeve or a withdrawal sleeve.

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