The brakes do not come with a hub so users can design and customize their own hubs. The brakes’ special friction material and highefficiency flux path permit 10 to 70 lb-in. of torque in a 3 to 4.5-in. diameter. The unit’s single-face engagement and disengagement permits quick torque buildup and release.

Ogura Industrial Corp.,100 Randolph Rd., Somerset, NJ 08873, (732) 271-7310,