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MSB Product Line

Multiple Disc Spring Applied Brake (MSB)

MSB Product Line

  • Wet Static Torque – 45 to 455 lb-ft
  • Wet Starting Torque – 25 to 252 lb-ft
  • Dry Static Torque – 50 to 506 lb-ft
  • Dry Starting Torque – 38 to 378 lb-ft
  • Three standard frame sizes
  • Magnet Body Dia. – 5.2″ to 9.2″
  • Overall Length – 3″ to 5.9″
  • Bore sizes – 1.4″ to 3.5″
Performance / Mechanical Specifications MSB Series - Model Size
520 720 925
STP File Model 3D 3D 3D
Torque Rating (Static-Wet) lb-ft 45 180 455
Torque Starting (Wet) lb-ft 25 100 252
Torque Rating (Static-Dry) lb-ft 50 200 506
Torque Starting (Dry) lb-ft 38 150 378
Overall Length (ref) in 3.08 4.16 5.9
Body Diameter in 5.19 7.16 9.25
Magnet Body Co-Bore Diameter in 2.5 3.5 5.0

MSB Operation

This spring applied brake is designed specifically for applications requiring braking when power fails or when the brake will be applied for long periods of time. Spring applied clutches also available. Contact SEPAC Engineering for details. Many options are available.

When current is applied to the brake, the armature is attracted toward the magnet body releasing the discs, allowing them to rotate. When current is cut to the coil, springs push the armature into engagement with the discs stopping the load.

MSB Power-Off
MSB Power-On

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