| 摘要 |
In a bearing having inner and outer rings concentrically disposed about a bearing axis, the outer ring is provided with an annular mounting groove in an inner surface facing the axis for receiving a shield plate. The shield plate is an annular disk-like plate having a central opening for receiving the inner ring as the shield plate is mounted between the rings. The shield plate has an annular generally V-shaped groove in a surface facing in the axial direction, the groove being bounded on the outer circumferential side by a first portion of the plate having a nearly triangular shape, and bounded on the inner circumferential side by a second portion of the plate. The first portion of the plate has a thickness in the radial direction which is 1/2 to 1/6 the thickness of the second portion, and a height in the axial direction which is 1/2 to 1/5 the thickness of the second portion. Variations in the depth of the mounting groove occurring during formation of the outer ring are absorbed by variations in the deformation of the first portion of the shield plate so that the shield plate lies normal to the bearing axis and the outer ring is not deformed.
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