Insert spherical bearing for FAG are actually a variant of deep groove ball bearings. The characteristic is that the outer diameter surface of its outer ring is a spherical surface, which can be fitted into the corresponding concave spherical surface of the bearing seat to achieve alignment. Outer spherical bearings are mainly used to bear the combined radial and axial loads, which are mainly radial loads. Generally, they are not suitable to bear the axial load alone.
Although its basic performance should be similar to that of deep groove ball bearings, since most of these bearings are used in relatively rough machinery, the installation and positioning are not accurate enough, the axis alignment between the shaft and the seat hole is poor, or the shaft is long and has deflection In large cases, the accuracy of the bearing itself is not high enough, and some structures are relatively rough, so the actual performance is significantly discounted compared to deep groove ball bearings of the same specifications. For example: an outer spherical ball bearing with a jackscrew is used for a through shaft with poor stiffness and large deflection. This kind of bearing has sealing rings on both sides, which can strictly prevent the intrusion of dirt and has been loaded at the factory.
Appropriate amount of lubricant, no need to clean or add lubricant before installation, when the jackscrew on the protruding end of the inner ring of the bearing is tightened on the shaft. The allowable axial load shall not exceed 20% of the rated dynamic load.
The performance of the outer spherical ball bearing with an eccentric sleeve is basically the same as that of the outer spherical bearing with a jackscrew, except that the jackscrew is not on the inner ring, but on the eccentric sleeve. The inner hole of the tapered bore spherical ball bearing is a tapered hole with a taper of 1:12. It can be directly installed on a tapered shaft, or installed on a shoulderless smooth shaft with the help of a tightening bushing, and the bearing clearance can be fine-tuned.
Insert spherical bearing for FAG are preferred for applications that require simple equipment and components, such as agricultural machinery, transportation systems or construction machinery.
It is mainly used to bear the combined radial and axial loads, which are mainly radial loads. It is generally not suitable to bear the axial load alone. This kind of bearing can be installed with an inner ring (with a full set of rollers and retainers) and an outer ring respectively. This kind of bearing does not allow the shaft to tilt relative to the housing, and will generate additional axial force under any radial load. The size of the axial clearance of this kind of bearing has a great relationship with whether the bearing can work normally. When the axial clearance is too small, the temperature rise will be high; when the axial clearance is large, the bearing will be easily damaged. Therefore, special attention should be paid to adjusting the axial clearance of the bearing during installation and operation. If necessary, pre-interference installation can be performed to increase the rigidity of the bearing.
Type: Mounted outer spherical bearing is a bearing unit that combines a rolling bearing and a bearing seat. Most outer spherical bearings have a spherical outer diameter and are installed together with a bearing seat with a spherical inner hole. They have various structural forms and have good versatility and interchangeability.
At the same time, this type of bearing also has a certain degree of alignment in design, is easy to install, has a dual-structure sealing device, and can work in harsh environments. Bearing seats are generally cast. Commonly used seats include vertical seat (P), square seat (F), boss square seat (FS), boss round seat (FC), diamond seat (FL), ring seat (C), slider seat, etc. (T).
The outer spherical bearing with a seat is divided into a bearing core and a bearing seat. In terms of name, it is called the bearing center plus the bearing seat. For example, an outer spherical bearing with a set screw UC205 with a vertical seat is called UCP205. Due to the strong interchangeability of seated outer spherical bearings, the bearing core can be installed in bearing seats of the same specifications and different shapes at will.
Other
Insert spherical ball bearing with vertical seat
Insert spherical bearing with square seat
Insert ball bearing with diamond seat
Insert ball bearing with circular seat with boss
Insert ball bearing with annular seat
Insert spherical ball bearing with slider seat
Insert spherical ball bearing with suspended seat
Insert spherical ball bearing with suspended seat
Insert ball bearing with adjustable diamond seat
Insert spherical ball bearing with stamped seat
Insert ball bearings with other seats
Classification: Insert spherical bearing for FAG can be divided into three major categories according to the way of cooperation with the shaft:
1. Top-wire outer spherical ball bearings are code-named: UC200 series (light series), UC300 series (heavy-duty series), and For the deformed product UB(SB)200 series, if the application environment is suitable for a small environment, the UC200 series is generally selected, otherwise the UC300 series is selected. Usually there are two jackscrews on the outer spherical ball bearing, and the included angle is 120°. Its characteristic is that when cooperating with the shaft, the jackscrew is used to push against the shaft, and then it has a fixing effect, but its cooperation Environmental demands must oscillate on a small scale. This kind of outer spherical ball bearing is relatively common and widely used in various manufacturing industries such as textile machinery and ceramic machinery.
2. Tapered outer spherical ball bearings are codenamed: UK200 series, UK300 series. The inner diameter of this type of spherical ball bearing is a taper inner hole of 1:12 ratio. It must be used in conjunction with an adapter sleeve. The characteristics of this type of spherical ball bearing are: it can withstand a larger load than the spherical ball bearing with a top wire. load. Because the inner diameter of the same type of adapter sleeve used with it is smaller than that of the spherical ball bearing with a top wire. For example, the inner diameter of the UC209 spherical ball bearing with a top wire is 45mm, and the diameter of the shaft used with it is 45mm, and if If you change to a tapered outer spherical ball bearing, you can only choose an adapter sleeve with an inner diameter of 45mm, and the only tapered outer spherical ball bearing that cooperates with a 45mm adapter sleeve is UK210 (of course, if the fit is higher, you can choose UK310). Therefore, the conformity concession accepted by UK210 is much larger than that of UC209.
3. Outer spherical ball bearings with eccentric sleeves are codenamed: UEL200 series, UEL300 series, SA200 series. The main feature of this type of outer spherical ball bearing is that the upper end of the bearing has a certain degree of eccentricity, and an eccentric sleeve with the same degree of eccentricity is used to match it. This type of bearing can also be said to be a special bearing, because it is mainly used on agricultural machinery (harvesters, straw returning machines, threshers, etc.). This type of outer spherical ball bearings is mainly used on structures with strong beating, eccentricity The cooperation of the structure can effectively reduce the strong beating.
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