Mechanical Friction Torque Limiter - Through Shaft

Mechanical Friction Torque Limiter – Through Shaft

Continuously Engaged, Momentary Overload Protection

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


  • 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.
Product Code Maximum Recommended Torque SettingMaximum Bore with Standard Keyway (Inches / Millimeters)Detail SheetRequest 3D CAD Model
T2A2R-STL 200 lb-in0.500 in (12 mm)View PDFRequest
T3A2H-STL 792 lb-in1.000 in (24 mm) View PDFRequest
T4A2H-STL 1,406 lb-in1.250 in (31 mm)View PDFRequest
T5A2H-STL 2,736 lb-in1.438 in (38 mm)View PDFRequest
T6A1G-STL 3,070 lb-in2.000 in (52 mm) View PDFRequest
T6A2G-STL 6,140 lb-in2.000 in (52 mm) View PDFRequest
T8A1K-STL 6,066 lb-in2.500 in (66 mm) View PDFRequest
T8A2K-STL 12,132 lb-in2.500 in (66 mm)View PDFRequest