Flexible Mechanical Friction Torque Coupling

Continuously Engaged, Momentary Overload Protection

  • Mechanically adjustable, continuously engaged friction torque limiter slips in the event of an overload
  • Torque at which limiter will slip is field adjustable through the tightening or loosening of a nut
  • Adjustment nut is locked in place by set screws when desired torque setting is established
  • Set screws and customer supplied key connect the torque limiter mechanism to one shaft and the coupling hub to a second fully supported shaft
  • Note: Torque Limiter Mechanism DOES NOT support Coupling
  • Momentary overload protection
  • Torque limiters are not recommended in continuous slip or tension control applications. A SensiFlex® clutch or brake should be used instead.
  • Maximum RPM varies by model. Please consult the detail sheets (below). Consult engineering if the intended application exceeds the listed maximum RPM.
Design Features
  • No reset required after torque limiter slips
  • Elastomeric element compensates for up to 3 degrees of angular misalignment and up to 0.040 parallel offset between shafts
  • Both torque limiter mechanism and coupling bored to suit up to the maximum shown (US & Metric) to accept differing shaft sizes
Flexible Mechanical Torque Limiter Couplings
Torque Limiter Repair Kits & Parts
Click here or view PDF detail sheets
below for more information.

Download Product ManualPrint Page

Product No. Maximum
Torque Setting
Maximum Bore with Standard Keyway
(Inches / Millimeters)
Length (Inches) Outside Diameter (Inches) Minimum Shaft Insertion, Mechanism & coupling (Inches) Detail Sheet Request 3D CAD Model
T3H2H-STL 792 0.875 / 21 6.27 4.00 1.75 View PDF request
T4H2H-STL 1,406 1.25 / 31 7.44 5.13 2.06 View PDF request
T5H2H-STL 2,736 1.375 / 38 7.70 5.69 2.06 View PDF request
T6H1G-STL 3,070 2.000 / 52 9.91 7.34 2.37 View PDF request
T6H2G-STL 6,140 2.000 / 52 10.62 7.34 2.37 View PDF request

Additional Information

Mach III flexible torque limiter couplings are solidly constructed to provide reliable power transmission. Torque limiter models can be adapted to accommodate customer needs. See our Custom Design Solutions page for more information. Mach III encourages contact with our engineering department before purchasing a flexible torque limiter coupling for use in a new or retrofit application.

3D Model Request


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