Classification of Outer Spherical Bearings

The outer spherical ball bearing is actually a variant of the deep groove ball bearing, which is characterized by its outer ring outer diameter surface as the spherical surface, which can be assigned to the corresponding concave spherical surface of the bearing seat to play the role of adjustment. Although its basic performance and deep groove ball bearings should be similar, but because the bearings are mostly used in rough machinery, installation positioning is not accurate enough, the axis of the shaft and seat hole to neutral difference, or the shaft length and deflection, etc. , and the bearing itself is not high enough precision, some structures are also relatively rough, so the actual performance of the same specifications of deep-groove ball bearings to be hit a considerable discount.

The outer spherical bearings can be divided into three main categories according to the cooperative method with the shaft:

1. With the top wire outer spherical ball bearing its code: UC200 series (light series), UC300 series (heavy-duty series), and deformation product UB (SB) 200 series, if the use of the environment fit is small, usually select the UC200 series, on the contrary, choose the UC300 series. Usually the outer spherical ball bearing on the top wire are two, its angle is 120 degrees, its characteristic is to cooperate with the shaft is to use the top wire to top on the shaft, and then play a fixed effect, but the environmental needs of its cooperation is necessary to oscillate small scale. This outer spherical ball bearing comparison throughout, widely used in textile machinery, ceramic machinery and other production occupations.

2. With taper outer spherical ball bearing its code name: UK200 series, UK300 series. This kind of outer spherical ball bearing internal diameter of 1:12 share of the taper inner hole, when used with the tight set of cooperation, the characteristics of this kind of outer spherical ball bearing is: can accept a larger load than the outer spherical bearing with the top wire. Since the inner diameter of the same type of tight set with which it cooperates is smaller than the outer spherical ball bearing with the top wire, the inner diameter of UC209 with the outer spherical ball bearing with the top wire is 45mm, and the diameter of the shaft used in cooperation with it is 45mm, and if replaced with With taper outer spherical ball bearings, can only choose the inner diameter of 45mm tight set, and with 45mm tight set of cooperation with the tapenone outer spherical ball bearings only UK210 (of course, if the fit is higher can be selected UK310). As a result, the UK210 accepts a much bigger fit than UC209.

3. With eccentric set of outer spherical ball bearings its code name: UEL200 series, UEL300 series, SA200 series. The primary feature of this kind of outer spherical bearing is that the upper end of the bearing has a certain degree of eccentricity, and has the same degree of eccentricity of the pain set to cooperate with it. Such bearings can also be said to be special bearings, because it is the first in the agricultural machinery (harvester, straw machine, granulation machine, etc.) on the use of such outer spherical bearings first used in the beating ratio of strong layout, the cooperation of the pain layout can be useful to reduce strong beats.