Mechanical Friction Torque Limiter Mechanisms with Adapters

Mechanical Friction Torque Limiter Mechanisms with Adapters

Continuously Engaged, Momentary Overload Protection

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


  • 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.


  • Through/Mid Shaft or End of Shaft.
  • Torque Limiter slides on shaft and is fixed with set screws and customer supplied key.
  • Adapter connects to a fully supported, bearing mounted pulley, gear, or sprocket.
  • Note: Mechanism DOES NOT support Adapter.


  • Momentary overload protection.
  • For continuous slip or tension control applications, a SensiFlex┬« clutch or brake should be used.
  • 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.
  • Bored to suit up to the maximum shown (US & Metric) for easy installation.
  • Machined face and bolt circle on adapter facilitate connection to bearing mounted pulley or gear.
Product Code Maximum Recommended Torque SettingMaximum Bore with Standard KeywayDetail Sheet Request 3D CAD Model
V2R2R-STL 200 lb-in0.500 in (12 mm)View PDFRequest
V3R2H-STL 792 lb-in 1.000 in (24 mm)View PDFRequest
V4R2H-STL 1,406 lb-in 1.250 in (31 mm) View PDFRequest
V5R2H-STL 2,736 lb-in1.438 in (38 mm) View PDFRequest
V6R1G-STL 3,070 lb-in 2.000 in (52 mm)View PDFRequest
V6R2G-STL 6,140 lb-in2.000 in (52 mm)View PDFRequest
V8R1K-STL 6,066 lb-in2.500 in (66 mm)View PDFRequest
V8R2K-STL 12,132 lb-in2.500 in (66 mm) View PDFRequest