外球面球轴承实际上是深沟球轴承的一种变型，特点是它的外圈外径表面为球面

The outer spherical ball bearing is actually a variant of the deep groove ball bearing, which is characterized in that the outer diameter surface of the outer ring is spherical, which can be fitted into the corresponding concave spherical surface of the bearing seat to play a self-aligning role. The outer spherical bearing is mainly used to bear the combined radial and axial load mainly radial load, it is generally not suitable to bear the axial load alone. <br><br>The spherical ball bearings can be divided into three categories according to the method of cooperation with the shaft: <br>First, the spherical ball bearings with top wire are <br><br>coded as: UC200 series (light series), UC300 series (heavy series), and deformation products UB (SB) 200 series, if the operating environment fit is small, usually choose UC200 series, otherwise choose UC300 series. <br><br>Generally, there are two jacking screws on the outer spherical ball bearing, and the included angle is 120 °. Its feature is that when working with the shaft, the jacking screw is used to push on the shaft, and then it has a fixed effect, but its cooperation It is necessary for the environmental demand to oscillate on a small scale. This kind of spherical bearing is widely used in textile machinery, ceramic machinery and other production occupations. <br><br>2. The tapered spherical ball bearings <br><br>are coded as: UK200 series, UK300 series. This type of spherical ball bearing has a taper inner hole with an inner diameter of 1:12 shares. It should be used in cooperation with the adapter sleeve. The characteristic of this type of spherical ball bearing is that it can accept a greater load than the spherical ball bearing with top wire. . <br><br>Because the inner diameter of the same type of adapter sleeves with which it cooperates is smaller than that of the spherical ball bearing with top wire, for example, the inner diameter of the spherical ball bearing UC209 with top wire is 45mm, and the diameter of the shaft used in cooperation with it is 45mm. If you change to a tapered spherical ball bearing, you can only choose the adapter sleeve with an inner diameter of 45mm, and the tapered spherical ball bearing that cooperates with the 45mm adapter sleeve is only UK210 (of course, if the fit is higher, you can choose UK310). Therefore, the agreement accepted by UK210 should be much larger than that of UC209. <br><br>3. Outer spherical ball bearing with eccentric sleeve<br><br>Its codenames 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 cooperates with it. This type of bearing can also be said to be a special bearing. Because it is mainly used in agricultural machinery (harvesters, straw returning machines, threshers, etc.), such spherical bearings are mainly used in layouts with strong beating, eccentric layout Cooperation can effectively reduce strong beats. <br><br><br>Spherical bearings disassembly <br>disassembly <br><br>1. First use an Allen wrench to loosen the locking screw on the bearing eccentric sleeve, then use a small iron rod to insert the counterbore on the eccentric sleeve of the top cover, and loosen the eccentric sleeve against the rotation direction of the shaft. <br><br>2. Loosen the bolts holding the bearing housing. Remove the bearing together with the bearing seat from the shaft. Note before removing the bearing housing at one end of the shaft. The bearing seat bolts at the other end of the shaft should be loosened to prevent the bearings at both ends from being stiff and damaged. <br><br>Installation <br>1. Before installing the bearing on the shaft, you must first remove the fixing pin of the bearing jacket, at the same time polish the surface of the journal to be smooth and clean, and apply oil to the journal to prevent rust and lubrication (allowing the bearing to rotate slightly on the shaft). <br><br>2. Apply lubricating oil to the mating surfaces of the bearing housing and bearing, and install the bearing into the bearing housing. Then put the assembled bearing on the shaft together with the bearing seat. Push to the desired location to install. <br><br>3. Do not tighten the bolts that secure the bearing housing first, but allow the bearing housing to rotate in the bearing housing. Also install the other end bearing and seat on the same shaft, turn the shaft a few times, and let the bearing itself find the correct position automatically. Then tighten the bearing seat bolts. <br><br>4. Install an eccentric sleeve. First put the eccentric sleeve on the eccentric step of the bearing inner sleeve, and tighten it by hand along the rotation direction of the shaft. Then insert or hold the small iron rod into the countersink hole. Use a hammer to strike the iron rod in the direction of rotation of the shaft. Install the eccentric sleeve firmly, and finally tighten the hexagon socket screws on the eccentric sleeve.

外球面球轴承实际上是深沟球轴承的一种变型，特点是它的外圈外径表面为球面，可以配入轴承座相应的凹球面内起到调心的作用。外球面轴承主要用来承受以径向负荷为主的径向与轴向联合负荷，一般不宜单独承受轴向负荷。<br><br>外球面球轴承依照与轴的合作方法来分能够分为三大类：<br>一、带顶丝外球面球轴承<br><br>其代号为：UC200系列（轻型系列） 、UC300系列（重型系列） 、及 变形产物UB(SB)200系列，假若运用环境契合较小，通常挑选UC200 系列，反之则选用UC300系列。<br><br>通常外球面球轴承上的顶丝都是有两 个，其夹角为120°，其特色就是与轴合作时是用顶丝来顶在轴上， 然后起到固定效果的，可是其合作的环境需求有必要振荡规模小。这 种外球面球轴承比拟遍及，广泛用于纺织机械、陶瓷机械等各制作职 业。<br><br>二、带锥度外球面球轴承<br><br>其代号为：UK200系列、UK300系列。此类外球面球轴承内径为1：12份额的锥度内孔，运用时要与紧定套合作运用，这类外球面球轴承的特色为能够接受比带顶丝外球面球轴承更大的负荷。<br><br>由于与其合作的紧定套同类型的内径要比带顶丝外球面球轴承小一些，比方带顶丝外球面球轴承UC209的内径为45mm，与其相合作运用的轴的直径为45mm,而假若假若换成带锥度外球面球轴承的话，只能挑选内径为45mm的紧定套，而与45mm的紧定套合作的带锥度外球面球轴承就只 有UK210了（当然假若契合更高的话能够挑选UK310的） 。 由此UK210所接受的契合当让要比UC209的要大的多了。<br><br>三、带偏心套外球面球轴承<br><br>其代号为:UEL200系列、UEL300系列、SA200系列。此类外球面球轴承首要特色为轴承上一端有必定的偏心度，有相同偏心度的偏心套与其合作。此类轴承也能够说是专用轴承，由于其首要是在农机（收割机、秸秆还田机、脱粒机等）上运用，此类外球面球轴承首要运用于跳动比拟强烈的布局上，偏心布局的合作能够有用的削减强烈的跳动。<br><br><br>外球面轴承的拆装<br>拆卸<br><br>1．先用内六角扳手松开轴承偏心套上的锁紧螺钉，然后用小铁棒插入顶盖偏心套上的沉孔，逆着轴的旋转方向打松偏心套。<br><br>2．旋松固定轴承座的螺栓。将轴承连同轴承座一起从轴上卸下。注意在拆轴一端的轴承座之前．应将轴另一端的轴承座螺栓松开，以免两端轴承相互别劲而损坏。<br><br>安装<br>1．往轴上安装轴承前，必须先拔下轴承外套的固定销，同时将轴颈表面打磨光滑干净，并在轴颈处涂油防锈兼润滑(允许轴承在轴上有稍微转动)。<br><br>2．在轴承座与轴承配合面涂润滑油，把轴承装入轴承座内。然后将装配好的轴承与轴承座一起套在轴上．推至所需位置处进行安装。<br><br>3．固定轴承座的螺栓先不要拧紧，要让轴承外套在轴承座内能转动。同样装好同一根轴上的另一端轴承和座，将轴转动几圈，让轴承本身自动找正位置后。再将轴承座螺栓紧固好。<br><br>4．装偏心套。先将偏心套套在轴承内套的偏心台阶上，并用手顺轴的旋转方向拧紧．然后再将小铁棍插入或顶住偏心套上的沉孔．用手锤顺轴的旋转方向敲击小铁棍．使偏心套安装牢固，最后锁紧偏心套上的内六角螺钉。

In fact, the outer spherical ball bearing is a variant of the deep groove ball bearing. Its outer ring outer diameter surface is spherical, which can be fitted into the corresponding concave spherical surface of the bearing seat to play the role of centering. The external spherical bearing is mainly used to bear the combined radial and axial load, which is mainly the radial load. Generally, it is not suitable to bear the axial load alone.<br>According to the cooperation method with the shaft, the external spherical ball bearing can be divided into three categories:<br>1、 Spherical ball bearing with jackscrew<br>Its code is uc200 series (light series), uc300 series (heavy series) and deformation product UB (sb) 200 series. If the application environment is small, uc200 series is usually selected, otherwise uc300 series is selected.<br>Generally, there are two jackscrews on the spherical surface ball bearing, with an included angle of 120 °. Its characteristic is that when cooperating with the shaft, the jackscrew is used to jack on the shaft, and then it has a fixed effect. However, the cooperation environment needs small oscillation scale. This kind of spherical ball bearing is widely used in textile machinery, ceramic machinery and other manufacturing industries.<br>2、 External spherical ball bearing with taper<br>Its code is: uk200 series, uk300 series. The inner diameter of this kind of external spherical ball bearing is 1:12 share of the taper inner hole, which should be used in cooperation with the tightening sleeve. The characteristic of this kind of external spherical ball bearing is that it can accept more load than the external spherical ball bearing with jacking wire.<br>For example, the inner diameter of uc209 is 45mm, and the diameter of the shaft used in cooperation with uc209 is 45mm, But if we change it into the tapered outer spherical ball bearing, we can only choose the tight set with an inner diameter of 45mm, and the tapered outer spherical ball bearing with 45mm tight set only has uk210 (of course, if it fits higher, we can choose uk310). Therefore, uk210's acceptance of the agreement should be much greater than uc209's.<br>3、 Spherical ball bearing with eccentric sleeve<br>Its code is: uel200 series, uel300 series, sa200 series. The main feature of this kind of ball bearing is that there is a certain eccentricity at the upper end of the bearing, and the eccentric sleeve with the same eccentricity cooperates with it. This kind of bearing can also be said to be a special bearing, because it is mainly used in agricultural machinery (harvester, straw returning machine, thresher, etc.), this kind of spherical ball bearing is mainly used in the layout with strong beating, and the cooperation of eccentric layout can effectively reduce strong jumping.<br>Disassembly and assembly of outer spherical bearing<br>Disassemble<br>1. First loosen the locking screw on the bearing eccentric sleeve with the Allen wrench, then insert the small iron bar into the counterbore on the top cover eccentric sleeve, and loosen the eccentric sleeve against the rotation direction of the shaft.<br>2. Loosen the bolts that fix the bearing seat. Remove the bearing with the bearing housing from the shaft. Before removing the bearing pedestal at one end of the shaft, loosen the bolts of the bearing pedestal at the other end of the shaft, so as to avoid the damage of the bearings at both ends due to the mutual force.<br>install<br>1. Before installing the bearing on the shaft, the fixing pin of the bearing sleeve must be pulled out first, and the surface of the journal shall be polished smooth and clean, and the journal shall be coated with oil, rust prevention and lubrication (the bearing is allowed to rotate slightly on the shaft).<br>2. Apply lubricating oil on the matching surface of bearing seat and bearing, and install the bearing into the bearing seat. Then the assembled bearing and bearing seat are sleeved on the shaft and pushed to the required position for installation.<br>3. Do not tighten the bolts to fix the bearing seat. Make sure that the bearing sleeve can rotate in the bearing seat. Also install the bearing and seat at the other end of the same shaft, rotate the shaft several times, and let the bearing itself automatically align the position. Then fasten the bolts of bearing seat.<br>4. Install eccentric sleeve. First, put the eccentric sleeve on the eccentric step of the bearing inner sleeve, and tighten it by hand in the direction of rotation of the shaft. Then, insert or counter the small iron bar into the counterbore of the eccentric sleeve. Tap the small iron bar with the hammer in the direction of rotation of the shaft to make the eccentric sleeve firmly installed. Finally, lock the hexagon socket screw on the eccentric sleeve.<br>