Hub brake consists of housing, coils, armature, end cover and other parts. When current goes through the coils, with the electromagnetic affection, armature will be attracted by the end cover. The armature bars will be pushed out. It will push away the brake arms of the traction machine, at the same time release the brake wheels. Then the traction machine could turn around freely. The other situation is losing electrical power on the coils. At this time, the electromagnetic will disappear. With the force of springs, brake arms will hold the brake wheels again. Finally, machinery brake would be achieved.
Characters: compact structure, high efficiency, reliable.
Application: widely used in variety of gear and non-gear traction machines.