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Building Oil Shear Clutches & Brakes
since 1969
Call Today 800-829-3244

Force Control Industries, Inc.
3660 Dixie Highway
Fairfield, Ohio 45014 USA
Phone 513-868-0900 | Fax 513-868-2105

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Posistop Air/Hydraulic Motor Brakes

Low Maintenance – No Adjustment Air Actuated Oil Shear Motor Brakes
Perfect for Hazardous Duty Applications

PosistopMotorBrakeThe Posistop Motor and Coupler Brakes are designed for long life with minimal maintenance in severe and critical applications. They are typically furnished as spring set, pressure release brakes however pressure set spring release is available in some models. The multiple disc design reduces inertia of the brake putting less load on the motor and improves efficiency each cycle.

Posistop motor brakes are designed to mount to the back of brake motors, and the coupler brakes are designed to mount to the drive end of the motor, often between the motor and reducer. Coupler brakes can also be used on servo motors.

  • Up to 10 times longer life
  • Minimal Maintenance
  • No Adjustment – Ever!
  • Air or Hydraulic Actuation
  • Horizontal or Vertical Mounting
  • Dust, Dirt, and Moisture Proof
  • Standard or Custom Mounting
  • Each model variable Torque – Number of Springs and Discs
  • Tapered collet
  • Bore and keyway
  • Spline shaft connection


Five model sizes offer torque from 6 Lb. Ft. to 2,030 Lb. Ft. and fit 56 frame up to 440 frame motors. Special flanges mountings can be furnished such as IEC, servo, or other flange sizes.

The standard shaft connection is a quill using a tapered collet providing a 360º clamped connection. Other quills are available including splined and bore and keyway.

The totally enclosed sealed housing eliminates dust, dirt, moisture, and fumes from causing internal damage. Also using an hazardous duty valve the Posistop brakes can be used in hazardous environments.

Posistop brakes are designed as dynamic brakes, in other words they can dynamically stop a load as well as hold it. The high thermal capacity allows higher cycle rates, and heavier loads.

The secret to the long life and minimal maintenance is Oil Shear Technology. Utilizing transmission fluid circulating through the disc stack the friction surfaces are protected from mechanical contact during dynamic engagement and the heat is removed via the fluid to the housing to be cooled. This nearly eliminates friction disc wear. The friction stack is typically not replaced as a regular wear item but only during rebuild. Because there is virtually no wear there is no need to adjust the brake for wear as is necessary with dry friction competitors. By reducing friction disc wear, removing heat, and lubricating the internal components, up to 10 times longer life can be expected without constant adjustment and repair.

  • Torque 6 Lb. Ft. to 2,030 Lb. Ft.
  • Fit NEMA 56 to 449T motor frames
  • Spring Set - Pressure Release
  • Pressure Set—Spring Release
  • IEC and Custom flange available
  • Wash Down or Marine Duty
  • Severe and Hazardous Duty
  • Can be furnished as an assembled brake motor
  • Can be installed on customer’s motor


MB210 AssembledBrakeMotor
MB210 Assembled Brake Motor

MB210 MotorBrake
MB210 Motor Brake

Posistop MB210 Thru Shaft Motor Brake
MB210 Thru Shaft Motor Brake

Posistop Servo Motor
Posistop Brake assembled on a Servo Motor

Posistop MB056 Coupler Brake
MB056 Coupler Brake

Posistop MB440 Coupler Brake
MB440 Coupler Brake



Oil Shear Technology—No Adjustment-Ever!

Typical Industry Applications Include;

Long Life—5 to 10 Times Longer
          Severe Duty—Hazardous Duty
                   No Adjustment—No Maintenance

Posistop Coupler Brake Cut A Way



Posidyne X2 Clutch Brake WashdownA washdown option is available for the Posidyne 1.5. It includes stainless steel mounting hardware, nickel plated shaft, and non-corrosive breather and sight gauge. The housing can be coated with white epoxy, or the popular Steel It epoxy.

Manifold Mounted Valve

manifold mounted valve largeAdd the convenience and performance of a Manifold Mounted Valve. Mounting the valve directly on the unit eliminates extra plumbing, improves response time, increases cycle rate, and improves positioning accuracy.

True Cost to Own Comparison Calculator

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True Cost to Own Comparison Calculator
Posidyne Oil Shear Clutch Brakes last so much longer than the popular dry friction inexpensive clutch brakes it is sometimes hard to determine how much savings can be realized.

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Oil Shear Technology
Is The Difference!


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