The V series brakes are dry type single disc units. This ensures fast response in high speed, high cycle applications.
The armature is mounted to the hub by special leaf springs to provide minimal backlash and no armature rattle.
The clutch and brake are mounted in one housing. A simple connection to the input or the output shaft with a pulley or coupling is all that is required.
To reduce the chance of contamination to the clutch or brake. Also, a housing will reduce the chance of wear particles from the clutch or brake. Thin housing helps cool the unit in demanding applications.