| 摘要 |
PROBLEM TO BE SOLVED: To obtain a structure of a bearing cap which can effectively discharge foreign matters intruding into a holder insertion hole or a holder support part.SOLUTION: A bottomed holder insertion part 46 for inserting a tip of a rod-shaped holder main body part constituting a sensor holder therein is formed at a bottom plate part 39 which constitutes a bearing cap 33, and a holder support part 47 which protrudes from an axial inside face of the bottom plate part 39 toward the inside in an axial direction, and supports an intermediate part of the holder main body part without causing wobbling is formed at a periphery of an opening part of the holder insertion part 46. Then, an axial inside end face of the holder support part 47 is made to serve as a seat face part 55 which abuts on a side face of an attachment flange part which is arranged at a base end of the holder main body part. In addition to this, at a lower part of the seat face part 55, an upstream side end of the seat face part is opened at an internal peripheral face of the holder support part 47, and a drainage groove 56 is formed in which a downstream side end of the seat face part is opened at a lower face out of an external peripheral face of the holder support part 47.SELECTED DRAWING: Figure 2 |
