Spherical Ball Bearing
>>Structure & Characteristic
According to different structures, self-aligning ball bearings can be divided into two types:
- Cylindrical hole spherical ball bearing;
- Tapered hole spherical ball bearin;
1.Cylindrical hole spherical ball bearing
Because it has two rows of steel balls and arc raceway in the outer ring, the spherical ball bearing can automatically adjust the center, and can bear the angle error between the shaft and the bearing seat, which is suitable for the working condition of shaft deflection and shaft misalignment. The friction of spherical ball bearing is the lowest of all rolling bearings, so even in the case of high speed, it still has a small temperature rise.
2.Tapered hole spherical ball bearing
This kind of bearing has the characteristics of cylindrical hole spherical ball bearing, but the inner hole is tapered hole (conventional taper 1:12), which can be installed on the tapered shaft to fine tune the bearing clearance. This kind of bearing is mostly used on the double bearing shaft with large bending under the load, and the two bearing seat holes can not guarantee strictly concentric parts. It is mainly used to bear radial load, but also can bear a small amount of axial load, generally can not bear pure axial load. Its ultimate speed is lower than that of deep groove ball bearing of the same specification, but its bearing capacity is higher than that of deep groove ball bearing.
The spherical ball bearing is mainly used to bear radial load, but also can bear a small amount of axial load, generally can not bear pure axial load. It is especially suitable for bearing applications where considerable shaft deflection or misalignment may occur. For example, precision instruments, low-noise motors, automobiles, motorcycles, woodworking machinery, transmission shafts of textile machinery, mining machinery, electromechanical equipment, plastic machinery, office equipment, medical equipment, fitness and sports equipment and general machinery are the most widely used bearings in the mechanical industry.