Bearing cage and use thereof

A one-way snap-in cage for a deep groove ball bearing, comprising:

• an annular backbone portion, and
• a hanging out portion extending from the backbone portion towards an axial side, the hanging out portion comprising a pocket for accommodating a rolling element of the bearing in a circumferential direction and a pocket connection used to connect adjacent pockets, a bottom portion of the pocket being formed integrally with the backbone portion, and, at other positions in the circumferential direction, the backbone portion extending in an axial direction to form the pocket connection, wherein
• the ratio Hc/H of a radial size Hc of the cage in terms of thickness to a radial size H of the bearing in terms of thickness satisfies the relation 10.875%≤Hc/H≤23%, wherein
• the radial size Hc of the cage in terms of thickness is equal in value to half of the difference between the maximum outer diameter Dc_max and the minimum inner diameter Dc_min of the cage, that is, Hc=(Dc_max−Dc_min)/2;
• and
• a radial size H of the bearing in terms of thickness is equal in value to half of the difference between an outer diameter D and an inner diameter d of the bearing, that is, H=(D−d)/2.

A one-way snap-in cage for a deep groove ball bearing, comprising:

• an annular backbone portion, and
• a hanging out portion extending from the backbone portion towards an axial side, the hanging out portion comprising a pocket for accommodating a rolling element of the bearing in a circumferential direction and a pocket connection used to connect adjacent pockets,
• a bottom portion of the pocket being formed integrally with the backbone portion and, at other positions in the circumferential direction, the backbone portion extending in an axial direction to form the pocket connection, wherein
• the maximum outer diameter Dc_max of the cage and a pitch diameter Dp of the bearing satisfy the relation −16.256%≤(Dc_max−Dp)/Dw≤24.384%, wherein
• the pitch diameter Dp of the bearing is defined as half of the sum of an outer diameter D and an inner diameter d of the bearing, that is, Dp=(D+d)/2;
• and Dw is the diameter of the rolling element of the bearing.

A one-way snap-in cage for a deep groove ball bearing, comprising:

• an annular backbone portion, and
• a hanging out portion extending from the backbone portion towards an axial side, the hanging out portion comprising:
• a pocket for accommodating a rolling element of the bearing in a circumferential direction, and
• a pocket connection used to connect adjacent pockets,
• a bottom portion of the pocket being formed integrally with the backbone portion, the backbone portion extending in an axial direction to form the pocket connection, wherein
• the maximum outer diameter Dc_max of the cage and a pitch diameter Dp of the bearing satisfy the relation −5%≤(Dc_max−Dp)/H≤7.5%, wherein
• the pitch diameter Dp of the bearing is defined as half of the sum of an outer diameter D and an inner diameter d of the bearing, that is, Dp=(D+d)/2;
• and
• a radial size H of the bearing in terms of thickness is defined as half of the difference between the outer diameter D and the inner diameter d of the bearing, that is, H=(D−d)/2.