Archive

Product Spotlight: Clutches & Brakes

Feb. 1, 2008

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

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