Bolt-on brakes
Bolt-on brakes for small frame assemblies are spring set and have a clamp-collar fitting for quick assembly.
Features & benefits
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Can be easily mounted on most standard stepper and servomotors without custom components or special engineering
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Furnished with built-in shaft that readily accepts a gearbox, pulley, or other parts
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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
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Brakes for unwind tensioning and load simulation; clutches for rewind tensioning and torque limiting
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Torque is varied from near zero to rated torque by adjusting input current
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5 oz-in. to 300 lb-ft units, with heat dissipation to 1900 W, continuous duty
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Hysteresis brakes for low torque, wide speed applications
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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
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Serves as a primary or redundant brake to prevent ball screws from back driving during mechanical problem or power loss
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Low backlash and high accuracy
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Expanding shaft/clamping hub coupling easily connects brake to most ball screws
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Five sizes with 20 to 1,100 lb-in. holding torque
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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
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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
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MCDB series offers torques of 4.5 to 18 lb-in. in a 2 to 3 in. diameter
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FNB series offers torques of 10 to 70 lb-in. in a 3 to 4.5 in. diameter
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Single face engagement and disengagement means quick torque build-up and quick release
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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
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Sizes from less than 1.0 to more than 5.0 in.
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Torques from less than 1 to more than 500 lb-in.
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Speeds to 20,000 rpm
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Varied voltages
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Mount from either direction
Sepac Inc.
(607) 732-2030
www.sepac.com
Circle 158