Spherical ball bearing is two raceways of the inner ring and raceway for the spherical outer ring, assembled with spherical ball bearings.
The center of curvature of the outer raceway surface is the same as the bearing center, so it has the same centering function as self-aligning ball bearings. In the case of shaft and shell deflection, it can be automatically adjusted without increasing the burden on the bearing. Spherical roller bearings can withstand radial load and axial load in two directions. Radial load capacity is large, suitable for heavy load, shock load situation. Bearings with tapered bore inner diameter of inner ring can be mounted directly. Or mounted on the cylindrical shaft using a retaining sleeve or dismantling cylinder. Cage using steel plate stamping cage, polyamide molding cage and copper alloy turning cage.
Spherical ball bearings have cylindrical hole and tapered hole two kinds of structure, keep frame material has steel plate, synthetic resin and so on. It is characterized by the outer ring raceway is spherical, with automatic centering, can compensate for different degrees of heart and shaft deflection caused by the error of self-aligning ball bearings, but its inner and outer circle relative tilt shall not exceed 3 degrees.
Can withstand large radial load, but also can withstand a certain amount of axial load. This type of bearing outer ring raceway is spherical, so it has the centering performance, when the shaft force bending or tilting and make the inner ring center line and outer ring center line relative tilt is not more than 1 ° ~ 2.5 °, the bearing can still work.
Spherical ball bearing bore has cylindrical and conical two kinds. The taper of tapered bore is 1:12 or 1:30, in order to strengthen the lubrication performance of the bearing, the outer ring of the bearing is processed with ring-shaped oil groove and three oil holes.
Product characteristics:
Mainly bear radial load, at the same time can withstand small axial load. Axial displacement of the shaft (shell) is limited to the clearance limit, with automatic centering performance, allowing the inner and outer periphery of the relative tilt is not too much under the conditions of normal operation, suitable for supporting the seat hole can not be strictly ensure the coaxiality of the components.
Structural form:
With dust cover and with sealing ring self-aligning ball bearing assembly has been filled with appropriate amount of lubricating grease, should not be heated before installation also need not be cleaned, the use of the process does not need to lubricate, adapt to the operating temperature -30 ℃ to +120 ℃ between. Self-aligning ball bearings are mainly used in precision instruments, low noise motors, automobiles, motorcycles and general machinery, is the most widely used in the mechanical industry, a class of bearings.