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Spherical Roller Bearings

Spherical Roller Bearings

Categorys: Steel Cage
Manufactor: XiMaiKe
Introduce: The self-aligning roller bearing has two rows of rollers It mainly bears radial load and axial load in any dir...
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The self-aligning roller bearing has two rows of rollers. It mainly bears radial load and axial load in any direction. It has high radial load capacity, especially suitable for working under heavy load or vibration load, but can not bear pure axial load. The outer raceway of this kind of bearing is spherical, so its alignment performance is good and it can compensate coaxiality error.
 
There are two rows of symmetrical spherical roller, the outer ring has a common spherical raceway, the inner ring has two raceways inclined to the axis of the bearing, which have good alignment performance. Bearings can still be used normally when the axis is bent or installed with different centers. The alignment varies with the size series of bearings. Generally, the allowable alignment angle is 1-2.5 degrees, and the load capacity of this type of bearings is comparable. Large, in addition to the radial load bearing can also withstand bidirectional axial load, has a good impact resistance, generally speaking, the working speed allowed by the self-aligning roller bearings is low.
 
Self-aligning roller bearings are divided into symmetrical spherical roller and asymmetrical spherical roller according to the cross-section shape of the roller. Asymmetrical self-aligning roller bearings belong to the early products, mainly serving for the maintenance of the main engine. Symmetrical self-aligning roller bearings are seldom used in the new design of the main engine. The internal structure of the bearings has been comprehensively improved, and the parameters have been optimized, which is similar to those of the self-aligning roller bearings produced in the Compared with other types of bearings, it can withstand larger axial loads, and its operating temperature is lower, so it can meet the requirements of higher rotational speed. According to the difference of inner ring with or without shield and cage used, it can be divided into C-type and CA-type bearings. The characteristics of C-type bearings are that inner ring has no shield and adopts steel plate stamping cage. The characteristics of CA-type TREN bearings are that both sides of inner ring have shield and are maintained by vehicle-made solid. Rack.
 
Self-aligning roller bearings are divided into cylindrical bore and tapered bore. The taper of tapered inner bore is 1:12 rear-coded K-centered roller bearings (153000 or 113000) and 1:30 rear-coded K-30 self-centered roller bearings, respectively. When the bearing is matched with the tapered shaft, the inner ring moves along the axis to adjust the radial clearance of the bearing.
 
If the tapered hole self-aligning roller bearings with the rear codes K and K30 are installed on the matching fixing sleeve, they will become the rear codes K+H and K30+H bearings. This kind of bearing can be mounted on the optical axle without shoulder, and is suitable for the occasion where bearings need to be installed and disassembled frequently. In order to improve the lubrication performance of bearings, there are three uniformly distributed oil holes drilled with annular grooves in the outer ring of bearings, and the latter code is W33.
 

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