Patent ID: 9103378
Filing Date: 2015-08-11
Classification: F16C,G01M

Abstract:
1. A bearing inside which a lubricant is able to be sealed, comprising: a rotary motion body that moves when a rotation drive force is applied; and a rotation angle indicator that is provided on the rotary motion body and that is moved, in conjunction with the movement of the rotary motion body, to a position that corresponds to the rotation angle of the rotary motion body, wherein both the position of the rotation angle indicator as seen from the axial direction of the bearing, and the position of the rotation angle indicator as seen from an orthogonal direction relative to the axial direction move in accordance with the rotation angle of the rotary motion body, and the rotation angle indicator is formed by a first marker and a second marker that are formed from a material having a higher rate of radiation beam absorption than that used to form the rotary motion body.