Westinghouse Air Brake Technologies Corporation
VENTILATED BRAKE DISC

Abstract:

A friction ring configured to be fixed to a hub at one or more fixation points is provided. The friction ring includes a ring shaped body; an outer surface configured to be contacted by a brake mechanism; an inner surface configured to contact a portion of a hub or axle to impart a braking force thereto; at least one through-hole for receiving a fastener for fixing the friction ring to the hub or axle; and at least two protrusions extending from the inner surface of the friction ring forming a channel. A cross-sectional area of an inflow portion of the channel is smaller than a cross-sectional area of an outflow portion of the channel. A brake assembly including a hub and the fixation ring is also provided.