Bracket for wheel speed sensor, and wheel speed sensor

A bracket for a wheel speed sensor for detecting a wheel speed, capable of fixing the wheel speed sensor to a fixing portion of a vehicle, comprising:

• a main body portion made of synthetic resin through which an insertion hole that allows insertion of a bolt that is to be fixed to the fixing portion, and an attachment hole that allows insertion of a wheel speed sensor assembly are formed;
• and
• a collapsible portion that is provided along a circumferential direction of the insertion hole on a side opposite to the fixing portion, and that is collapsed in accordance with tightening of the bolt,
• wherein a plurality of hole portions are provided along the circumferential direction of the insertion hole, and the collapsible portion includes a first collapsible portion that is left between the hole portions that are adjacent to each other in the circumferential direction of the insertion hole, and a second collapsible portion that is left in a shape of a ring between a circumferential edge of the insertion hole and the hole portions.