Bolt-on brakes

Bolt-on brakes for small frame assemblies are spring set and have a clamp-collar fitting for quick assembly.

Features & benefits

• Can be easily mounted on most standard stepper and servomotors without custom components or special engineering

• Furnished with built-in shaft that readily accepts a gearbox, pulley, or other parts

• Available for 17, 23, 34, and 42 frame sizes and metric sizes

Inertia Dynamics, an Altra Industrial Motion Co.
(800) 800-6445
www.idicb.com
Circle 154

Magnetic brakes, clutches

Magnetic particle brakes and clutches produce smooth, infinitely adjustable slip torque.

Features & benefits

• Brakes for unwind tensioning and load simulation; clutches for rewind tensioning and torque limiting

• Torque is varied from near zero to rated torque by adjusting input current

• 5 oz-in. to 300 lb-ft units, with heat dissipation to 1900 W, continuous duty

• Hysteresis brakes for low torque, wide speed applications

• Cog-buster and frictionless design ensures smooth, accurate slip torque

Placid Industries
(518) 523-2422
www.placidindustries.com
Circle 155

Ball screw brake

Spring-engaged, ball screw brake ensures quick, precise braking and holding in ball screw applications.

Features & benefits

• Serves as a primary or redundant brake to prevent ball screws from back driving during mechanical problem or power loss

• Low backlash and high accuracy

• Expanding shaft/clamping hub coupling easily connects brake to most ball screws

• Five sizes with 20 to 1,100 lb-in. holding torque

• Operates as vertical and horizontal

Nexen Group Inc.
(651) 286-1005
www.nexengroup.com/bsb
Circle 156

Spring-applied brakes

Spring-applied brakes have reduced internal components to simplify design and reduce cost and length for servo, robotic, and ballscrew applications.

Features & benefits

• Hub and disk are one piece; contact occurs on only one side of disk, so when brake is released there is no drag, no contact, and no noise

• MCDB series offers torques of 4.5 to 18 lb-in. in a 2 to 3 in. diameter

• FNB series offers torques of 10 to 70 lb-in. in a 3 to 4.5 in. diameter

• Single face engagement and disengagement means quick torque build-up and quick release

• Elimination of brake cover plate reduces length to smallest possible

Ogura Industrial Corp.
(732) 271-7310
www.ogura-clutch.com
Circle 157

Fail-safe brakes

Line of fail-safe brakes suits aerospace applications because they offer a high torque to size ratio.

Features & benefits

• Sizes from less than 1.0 to more than 5.0 in.

• Torques from less than 1 to more than 500 lb-in.

• Speeds to 20,000 rpm

• Varied voltages

• Mount from either direction

Sepac Inc.
(607) 732-2030
www.sepac.com
Circle 158