Holder for self-aligning roller bearing and self-aligning roller bearing

A holder for a self-aligning roller bearing, the holder comprises:

• a central annular part that extends in a circumferential direction;
• a plurality of lintels fixed to opposing axial side surfaces of the central annular part, each of the lintels extends a predetermined length in an axial direction;
• the plurality of lintels are arranged at intervals in the circumferential direction on each of the axial side surfaces to form pockets between adjacent ones of the lintels in the circumferential direction in which rolling elements are configured to be installed;
• the central annular part comprises protruding parts which protrude radially outwardly in a radial direction further than the lintels;
• reinforcement parts fixed to the central annular part and the lintels are located on outer sides of the lintels in the radial direction and are located on outer sides of the protruding parts in the axial direction;
• at parts of the holder where the lintels are disposed, in cross sections taken along the axial direction and radial direction, at least a part of a contour line of outer side surfaces of the reinforcement parts in the axial direction extends toward an inner side in the radial direction and also extends toward an outer side in the axial direction;
• wherein a number of the lintels on one side of the central annular part in the axial direction is equal to a number of the lintels on the other side of the central annular part in the axial direction, and the lintels on one side of the central annular part in the axial direction are aligned in the circumferential direction with the lintels on the other side of the central annular part in the axial direction;
• and
• wherein on an outer circumferential portion of the holder, two material removal sections are formed on the holder, and the two material removal sections are offset by 180 degrees in a circumferential direction, and a center position of each of the material removal sections is located between two adjacent ones of the lintels in the circumferential direction.