Mechanical Friction Torque Limiter, Over 200 RPM

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
  • Torque limiters can be mounted Through/Mid Shaft or End of Shaft
  • Torque limiter slides on shaft and is fixed with set screws and a customer supplied key
  • 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
  • Torque limiters are bored to suit up to the maximum shown (US & Metric) for easy installation.
  • Machined pilot for easy mounting of pulley or sprocket
Pilot Mount Torque Limiters
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) Detail Sheet Request 3D CAD Model
T2A2R-STL 200 0.500 / 12 1.93 2.58 View PDF request
T3A2H-STL 792 1.000 / 24 3.25 3.50 View PDF request
T4A2H-STL 1,406 1.250 / 31 3.78 4.48 View PDF request
T5A2H-STL 2,736 1.438 / 38 4.13 5.69 View PDF request
T6A1G-STL 3,070 2.000 / 52 4.75 7.34 View PDF request
T6A2G-STL 6,140 2.000 / 52 5.46 7.34 View PDF request
T8A1K-STL 6,066 2.500 / 66 5.92 10.00 View PDF request
T8A2K-STL 12,132 2.500 / 66 6.82 10.00 View PDF request

Additional Information

Mach III torque limiters are solidly constructed to provide reliable power transmission. The torque limiter pilot is machined for easy mounting of a sprocket or pulley in the field, or, Mach III can provide the sprocket or pulley pre-mounted on the torque limiter when it ships from our factory. 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 torque limiter for use in a new or retrofit application.

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