Outer spherical ball bearings are what we usually call outer spherical bearings. It belongs to deep groove ball bearings, and the rolling elements inside are steel balls; the outer ring surface is spherical, so it is called outer spherical ball bearing.
Outer spherical ball bearing Its code is: UC200 series (light series), UC300 series (heavy series), and deformed products UB (SB) 200 series. If the use of environmental load is small, generally choose UC200 series, otherwise choose UC300 series. Generally, there are two top wires on the outer spherical ball bearing, and the included angle is 120 °. Its characteristic is that when it is matched with the shaft, the top wire is used to press on the shaft to play a fixed role, but its matching Environmental requirements must have a small vibration range. This kind of outer spherical ball bearing is relatively common and is widely used in various manufacturing industries such as textile machinery and ceramic machinery.
Outer spherical ball bearing with taper Its code names are: UK200 series, UK300 series. This type of outer spherical ball bearing has a taper bore of 1:12 ratio. When used, it must be used with an adapter sleeve. The characteristics of this type of outer spherical ball bearing are: it can withstand larger load. Because the inner diameter of the same type of adapter sleeve is smaller than that of the outer spherical ball bearing with top wire, for example, the inner diameter of the outer wire ball bearing UC209 is 45 mm, and the diameter of the shaft used in conjunction with it is 45 mm. If it is replaced with a tapered outer spherical ball bearing, only an adapter sleeve with an inner diameter of 45mm can be selected, and the tapered outer spherical ball bearing matched with a 45mm adapter sleeve is only UK210 (of course, if the load is higher, you can choose UK310). Therefore, the load that UK210 bears should be much larger than that of UC209.
Outer spherical ball bearing with eccentric sleeve Its code names are: UEL200 series, UEL300 series, SA200 series. The main feature of this type of spherical ball bearing is that the upper end of the bearing has a certain eccentricity, and an eccentric sleeve with the same eccentricity is matched with it. This type of bearing can also be said to be a special bearing, because it is mainly used on agricultural machinery (harvesting machines, straw returning machines, threshers, etc.), this type of spherical ball bearings is mainly used on structures with more violent beating, eccentric structure The cooperation can effectively reduce the violent beat.
Outer spherical ball bearings are more convenient to use than general deep groove ball bearings. Their characteristics are mainly simple assembly and disassembly, and they can be adjusted. The standard tolerances of outer spherical ball bearings are: internal plus external subtraction. Lightweight; each set of spherical ball bearings is not used alone. It must be installed inside the bearing housing as a whole, and the spherical bearing housing has various shapes, so it is suitable for a variety of structural positions after being integrated.
Compared with other ordinary bearings, the outer spherical ball bearing also has a double-layer seal, because the general environmental conditions of the outer spherical ball bearing are relatively harsh, especially for agricultural machinery bearings. The three-lip sealed outer spherical bearing has greatly enhanced the dustproof ability and prolonged the service life of the bearing.