The main features of self-aligning ball bearings are:
(1) The outer ring raceway of a self-aligning ball bearing is a part of a spherical surface, and the center of curvature is on the bearing axis. したがって, the bearing has a self-aligning function and can be automatically adjusted when the shaft and housing are deflected. Does not increase the bearing burden.
(2) It can bear radial load and appropriate axial load in two directions. But it cannot bear moment load. The contact angle of this type of bearing is small, the contact angle is almost unchanged under the axial load, the axial load capacity is small, the radial load capacity is large, and it is suitable for heavy load and impact load.
(3) The double-row self-aligning ball bearing with adapter sleeve and lock nut can be installed at any position on the optical axis, without the need to locate the shaft shoulder. as the picture shows.