BRAKE DISC HAVING CORRUGATED OUTER PERIPHERY

摘要

The present invention provides a brake disc having a corrugated outer periphery capable of effectively preventing brake judder. A brake disc having a corrugated outer periphery 1 comprising a hub disc 4 fixed to a wheel, a braking disc 3 coaxially disposed outside the hub disc 4, and a connection pin 5 connecting the hub disc 4 and the braking disc 3 with each other in a floating state, in which a plurality of outer peripheral recesses 7 are formed in an outer periphery of the braking disc 3 at a distance from one another in a circumferential direction to form the outer periphery into a corrugated shape, wherein depths d of the outer peripheral recesses 7 from an outer peripheral circle C of the braking disc 3 are set shallow. The depth d of the outer peripheral recesses 7 is set to 7 mm or less.