Spherical roller bearingsHome > Product center > Spherical roller bearings

Spherical roller bearings have two raceways in the inner and outer ring raceways between spherical, drum-shaped assembly with roller bearings. Spherical roller bearings with two rows of rollers, the main path of a load to bear, but also can withstand axial load in either direction. A high radial load capacity, especially suitable for heavy work loads or vibration, but can not be subject to pure axial load. This kind of bearing outer ring raceway is spherical shape, so the good performance of its self-aligning, can compensate concentricity error.
Spherical roller bearings have two rows of symmetrical spherical roller, there is a common spherical outer ring raceway, the bearing inner ring with two axis tilted at an angle of the roller, aligning with good performance, when the axial force When installed in a different mind bending or normal use of still bearing, concentric with the bearing size series tone varies, generally aligning allowed 1 to 2.5 degree angle, the load bearing capacity of the larger type, in addition to radial loads dual role outside the bearing can withstand the axial load, has better impact resistance, in general,-aligning roller bearings to allow the work of the lower speed.
Spherical roller bearings roller cross section divided by symmetrical spherical roller and spherical roller non-symmetrical shape of two different structures, asymmetric spherical roller bearings are early products, the key is for the host service, the new design hosts are very rarely used symmetrical spherical roller bearings, the internal structure of fully improved design and parameter optimization, and early production compared to spherical roller bearings, can withstand greater axial load, the operation of these bearings lower temperature, it can be adapted to the requirements of high speed, according to whether the wall and the inner ring with a cage can be divided into two kinds of C-and CA-type, C type of bearing is characterized by no inner wall and the use of steel stamping cage, CA-type characteristics, compared with the inner sides of the bearing wall and the use of cars have solid cage in order to improve the lubrication, can provide users with an outer ring of tanks and three hole Spherical roller bearings, the bearings Post code / W33 said that according to the requirements of users can be supplied with the inner hole of the spherical roller bearings, in order to facilitate customer handling and replacement of bearings, but also provide the hole with a taper The self-aligning roller bearings, tapered bore, taper 1:12, code-named after the set K, in order to meet special user requirements are also available for the 1:30 taper bore bearings, then set the hole with a code-named K30 bearing taper nut can be directly mounted on the tapered journal bearings, but also can make use of tight sets or withdrawal sleeves will be installed in the cylindrical journal on the bearing. In order to ensure that the bearings running at high speed centrifugation to prevent the roller and roller slip between the harmful, the bearings should be the minimum radial load to bear a certain size can be estimated the following formula:
Fr = 0.02C
Fr - Minimum radial load N
C-bearing basic dynamic load rating N
Equivalent dynamic load
P = Fr + Y1Fa when Fa / Fr e time
P = 0.67Fr + Y2Fa when Fa / Fr e time
P-equivalent dynamic load of N
Y1 Y2-axial dynamic load factor
Equivalent static load
P0 = Fr + Y0Fa
P0-equivalent static load N
Y0-axial static load factor

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