External spherical bearings do not know the little knowledge

The outer spherical bearing is a representative rolling bearing, suitable for high speed or even very high speed operation, and do not need frequent maintenance. The outer spherical bearing has the advantages of small friction coefficient, high limit speed, simple structure, low manufacturing cost and easy to achieve high manufacturing accuracy.

Variable size range and form, used in precision instruments, low noise motor, automobile, motorcycle and general machinery and other industries, is widely used in the machinery industry for a class of bearings. Mainly bear radial load, and bear a certain amount of axial load.

When a larger radial clearance is selected, the axial bearing capacity increases, and the contact Angle is zero under pure radial force. With axial force, the contact Angle is greater than zero. Stamped wave cages are generally used, car - made solid cages, and sometimes nylon ones.

Domestic bearings installed on the shaft, in the axial clearance range of the bearing, can limit the axial displacement of the shaft or housing in two directions, so it can be axially positioned in both directions. The outer spherical bearing cages are mostly steel sheet stamping wave cages, and the large bearing cages are mostly automobile metal solid cages.

The outer spherical bearing is the most commonly used rolling bearing. Its structure is simple and easy to use. Mainly used to bear radial load, but when the radial clearance of the bearing is increased, it has the performance of a certain angular contact ball bearing, and can bear radial and axial combined load. When the speed is high and the thrust ball bearing is not suitable, it can also be used to bear pure axial load. Compared with other types of bearings with the same size and specification as spherical bearings, this kind of bearings has small friction coefficient and high limit speed. But not impact resistance, not suitable for heavy load.