Mechanical Friction Torque Limiters


Mach III friction torque limiters, also known as slip clutches, are designed to transmit a fixed amount of torque from one machine component to another until an overload is experienced. When that torque is exceeded, the friction torque limiter slips until the overload ceases. Torque setting is established by compressing the adjustment nut to the desired torque output, then fixing it in place with the provided set screw(s).

IMPORTANT: Mach III friction torque limiters do not disengage upon overload. A means of sensing and stopping the overload condition must be in place or a friction torque limiter will continue to slip, eventually overheating to the point where it is unfit for continued use.

NEMA Frame Torque Limiters
NEMA Frame Torque Limiter

Function: Overload Protection
Drive Arrangement: Motor to Gear Reducer (Gear Box)

  • Torque limiter input is bored and keyed to connect to a NEMA frame motor.
  • Torque limiter output shaft with key connects to a NEMA frame gear reducer.
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Through Shaft Mounted Torque Limiters
Through Shaft Mounted Torque Limiter

Function: Overload Protection
Drive Arrangement: Shaft to Pilot Mounted Component or Pilot Mounted Component to Shaft

  • Torque limiter is through bored and keyed for connection to a shaft in any axial location.
  • A sprocket, pulley or v-belt sheave can be mounted on the torque limiter pilot.
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Flexible Torque Limiter Couplings
Flexible Torque Limiter Couplings

Function: Overload Protection
Drive Arrangement: Shaft to Shaft
                                  Slight Angular Misalignment and/or Parallel Offset

  • Torque limiter mechanism is through bored and keyed to connect to a fully supported shaft.
  • Coupling is bored and keyed to connect to a fully supported shaft.
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Morse Taper Input Torque Limiter Mechanism With Couplings
Morse Taper Input Torque Limiter Mechanism With Couplings

Function: Overload Protection
Drive Arrangement: Component to Component

  • Input connects to a #3 Morse taper socket.
  • Variety of coupling options connect to either shafts or nuts
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Torque Limiter Mechanisms With Rigid Couplings
Torque Limiter Mechanism With Rigid Coupling

Function: Overload Protection
Drive Arrangement: Shaft to Shaft
                                  No Angular Misalignment and/or Parallel Offset

  • Torque limiter mechanism is through bored and keyed to connect to a fully supported shaft.
  • Coupling is bored and keyed to connect to a fully supported shaft.
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Torque Limiter Mechanisms With Adapters
Torque Limiter Mechanisms With Adapter

Function: Overload Protection
Drive Arrangement: Shaft to Adapter Mounted Component

  • Torque limiter mechanism is through bored and keyed to connect to a fully supported shaft.
  • Adapter connects to a bearing mounted pulley, gear or other component.
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More Torque Limiter Options
More Torque Limiter Options

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  • Mach III specializes in the creation of cost-effective custom solutions.
  • No minimum order quantities, lead times average only one week longer than catalog models.
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