The outer spherical bearing is divided into stainless steel, cast iron and stamping bearing seat, which is composed of outer spherical ball bearing with seal on both sides and casting (or steel plate stamping) bearing seat. The internal structure of the outer spherical ball bearing is the same as that of the deep groove ball bearing, but the outer ring of this bearing has a truncated spherical outer surface, which can be matched with the concave spherical surface of the bearing seat and can be self-aligning. Usually, this bearing uses jacking wire, eccentric sleeve or set sleeve to fix the bearing inner ring on the shaft and rotate with the shaft. The bearing with seat has compact structure and convenient assembly and disassembly. It is suitable for simple support. It is commonly used in mining, metallurgy Agricultural, chemical, transportation and other machinery.

There are two kinds of bearings with jacking screw: UC type with wide inner ring and UB type with flat head at one end of the inner ring. They are suitable for occasions with changing rotation direction. There are two kinds of bearings with eccentric sleeve: uel type with wide inner ring and UE type with flat head at one end of the inner ring. They are suitable for occasions with constant rotation direction. UK + H type with tight sleeve bearing, wide inner ring and inner diameter of conical hole is suitable for occasions with changing rotation direction When the rotating speed is high and the operation is more stable than that of the bearing with top screw and eccentric sleeve, there are many structural forms of outer spherical ball bearing seat, including vertical, square, diamond, boss circular, ring, slider seat and other forms of casting seat, and vertical, circular, triangular, diamond and other forms of stamping seat. The same kind of bearing with seat is deformed according to the structure of its seat or the lubrication mode of the bearing Different seals can be divided into various structural forms (see the classification of outer spherical ball bearing with seat for details), which are suitable for different needs.

Specific classification and model comparison:

The commonly used vertical seat (P) uc206 is the bearing, and the P seat plus bearing is ucp206. Square seat (f) ucf206 Boss square seat (FS) ucfs206, boss round seat (FC) ucfc206 Diamond seat (FL) ucfl 206 Slider seat (T) uct206. With K is the taper hole of inner ring 1:12, code uk206 uk306 Ue206 ue306 with eccentric sleeve

disassemble

1. First loosen the locking screw on the bearing eccentric sleeve with an Allen wrench, then insert a small iron rod into the counterbore on the top cover eccentric sleeve, and loosen the eccentric sleeve against the rotation direction of the shaft.

2. Loosen the bolts fixing the bearing seat. Remove the bearing together with the bearing seat from the shaft. Pay attention before removing the bearing seat at one end of the shaft The bolts of the bearing seat at the other end of the shaft shall be loosened to avoid damage to the bearings at both ends due to mutual force.

install

1. Before installing the bearing on the shaft, the fixing pin of the bearing sleeve must be pulled out, the surface of the journal must be polished smooth and clean, and the journal shall be coated with oil for rust prevention and lubrication (the bearing is allowed to rotate slightly on the shaft).

2. Apply lubricating oil on the mating surface of bearing seat and bearing, and install the bearing into the bearing seat. Then put the assembled bearing and bearing seat on the shaft Push to the required position for installation.

3. Do not tighten the bolts fixing the bearing seat first, and make the bearing sleeve rotate in the bearing seat. Similarly, install the bearing and seat at the other end of the same shaft, rotate the shaft for several turns, and let the bearing itself automatically align. Then fasten the bearing seat bolts.

4. Install eccentric sleeve. First put the eccentric sleeve on the eccentric step of the bearing inner sleeve and tighten it manually along the rotation direction of the shaft Then insert or counter the small iron bar into the counterbore on the eccentric sleeve Tap the small iron bar with the hammer along the rotation direction of the shaft Install the eccentric sleeve firmly, and finally lock the hexagon socket screw on the eccentric sleeve.