Flexible Mechanical Friction Torque Limiter Coupling
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. A 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). This can be set and adjusted in the field, or pre-set at Mach III before shipment. When the unit experiences torque in excess of the set value, the friction torque limiter slips until the overload ceases.
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.
FLEXIBLE MECHANICAL FRICTION TORQUE LIMITER COUPLING
Overload Protection Between Two Supported Shafts with Slight Angular and/or Parallel Misalignment
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.
Operation
Continuously engaged friction torque limiter slips when the torque setting is exceeded. Continues to slip until the overload ceases.
Each side of the assembly, (1) the torque limiter mechanism and the (2) coupling, is attached to a fully supported shaft creating a connection for the transfer of rotary motion from one shaft to the other.
Applications
Momentary overload protection.
Torque limiters are not recommended in continuous slip or tension control applications. Consider a SensiFlex® tension control clutch or brake.
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.
The slip torque setting can be adjusted.
Elastomeric element compensates for up to 3 degrees of angular misalignment and up to 0.040 parallel offset between shafts.
Each side of the assembly is bored and keyed to fit any shaft size up to the maximum shown (US and Metric).
Mounting
Set screws and customer supplied key connect the torque limiter mechanism to one shaft and the coupling hub to a second, fully supported shaft
Both shafts must be bearing supported
|
Product Code |
Maximum Recommended Torque Setting |
Maximum Bore with Standard Keyway |
Detail Sheet |
|
T3H2H-STL |
792 lb-in |
0.875 in (21 mm) |
|
|
T4H2H-STL |
1,406 lb-in |
1.250 in (31 mm) |
|
|
T5H2H-STL |
2,736 lb-in |
1.375 in (38 mm) |
|
|
T6H1G-STL |
3,070 lb-in |
2.000 in (52 mm) |
|
|
T6H2G-STL |
6,140 lb-in |
2.000 in (52 mm) |
