Brakes

Electromagnetic brakes come in either power-on or power-off designs, providing an efficient, switchable means of stopping and/or holding a load.  Our power-on design operates using the same principle as the clutch, but with only a single rotating component - the armature assembly.  The spring-set power-off brakes provide a safe, efficient means of stopping and/or holding a load in the absence of power. The actual braking force is applied by the use of compression springs within a field assembly.

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BF (Power-on)

Electromagnetic power-on brakes provide an efficient, switchable means of stopping and/or holding the load. While the field (electromagnet) assembly is fixed and prevented from rotating by a flange, the armature assembly….
     • Torques:  .56 to 14.13 Nm (5 to 125 lb-in)
     • Diameters:  31.8 to 83.1 mm (1.25 to 3.27 in)
     • Class B (130°C) insulation protection
     • Static or dynamic engagement
     • English or Metric hub bores
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BRP (Power-off)

Our BRP brakes use economic Hex Drive hubs and can be mounted face up or face down.  Usually less expensive than other lines, these brakes offer Class B insulation protection. Spring-set electromagnetic brakes…
     • Torques: 0.34 to 113.0 Nm (3 to 1000 lb-in)
     • Diameters: 38.1 to 184.2 mm (1.50 to 7.25 in)
     • Class B (130° C) insulation protection
     • Static or dynamic engagement
     • English or Metric hub bores
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SB (Power-off)

Our SB Series is designed as a servo brake with low backlash splines for high performance applications.  The spline drive construction withstands high impact stresses imparted by typical servo systems. High temperature…
     • Torques: 0.56 to 135.6 Nm (5 to 1200 lb-in)
     • Diameters: 38.1 to 184.2 mm (1.5 to 7.25 in)
     • Class H (180°C) insulation protection
     • Static or dynamic engagement
     • English or Metric hub bores
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FSB (Power-off)

FSB Series brakes are designed in small frame size packages.  The brake coupling armature assembly is secured to a shaft by set screws.  Spring-set electromagnetic power-off brakes provide a safe, efficient means….
     • Torques: 0.12 to 0.34 Nm (1 to 3 lb-in)
     • Diameters: 34.8 to 44.5 mm (1.37 to 1.75 in)
     • Class B (130°C) insulation protection
     • Static or dynamic engagement
     • English or Metric hub bores
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AKB (Power-off)

The AKB Series are specifically designed for use on the back end of servo or stepper motors. These spring-set electromagnetic power-off brakes provide a safe, efficient means of stopping and/or holding a load in the absence…
     • Torques: 1.4 to 53 Nm (12.5 to 470 lb-in)
     • Diameters: 46.5 to 127 mm (1.83 to 5 in)
     • Class F (155°C) insulation protection
     • UL Recognized, RoHS compliant
     • English or Metric hub bores
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PMB (Power-off)

The PMB Series is a power-off, DC spring set brake that provides a low-cost, multi-functional brake alternative for many applications. A simple, splined hub attaches to the shaft with a set screw and keyway and includes….
     • Torques: 5 to 480 Nm (45 to 4250 lb-in)
     • Diameters: 84 to 302 mm (3.31 to 11.89 in)
     • Class F (155°C) insulation protection
     • Optional manual release lever
     • English or Metric hub bores
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MBRP (Power-off)

The MBRP Series are a power-off, DC spring set metric brake that provides a low-cost, multi-functional brake alternative for many applications. A simple, square drive hub attaches to the shaft with a set screw and….
     • Torques: 0.24 to 4.0 Nm (2.12 to 35.4 lb-in)
     • Diameters: 37 to 75 mm (1.46 to 2.95 in)
     • Class F (155°C) insulation protection
     • Optional manual release lever
     • RoHS compliant
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