This safety device works only against overloads in the direction of rotation. It has many features in a compact body, such as accurate torque transfer and trip point, no backlash, and ease of use. The flange surface allows for easy mounting of tables, gears, and sprockets. Precision machined to ensure accuracy, safe rotation transfer, and longevity. 
High Accuracy
Excellent trip torque accuracy
Easy to Adjust
Trip torque can be adjusted by simply turning the adjustment nut.
No Play
Zero backlash
Various Mounting Options
Directly mounts to dials, gears, sprockets, arms, and other output masses.
Environmental Resistance
Available with optional rust-proofing for resistance to harsh operating environments.
| Characteristics | Unit | 4TF | 5TF | 6TF | 7TF | 8TF | 11TF | 14TF | 18TF | |
| Trip Torque Adjustment Range | N・m | 0.3 to 4.5 | 0.8 to 18.0 | 2 to 50 | 22 to 400 | 50 to 600 | 80 to 1200 | 110 to 1800 | 400 to 5000 | |
| Torque Adjustment Nut Thread Pitch | mm | 1 | 1.5 | 1.5 | 2 | 2 | 2 | 2 | 3 | |
| Max Allowable Radial Load | N | 69 | 108 | 3822 | 7154 | 10290 | 14700 | 23520 | 30184 | |
| Max Allowable Thrust Load | N | 392 | 569 | 7938 | 10780 | 14700 | 22050 | 28420 | 35280 | |
| Max Allowable Moment | N・m | 3.4 | 6.9 | 118 | 196 | 372 | 666 | 1019 | 1441 | |
| Max Allowable Rotation Speed | rpms | 2000 | 1600 | 800 | 600 | 400 | 300 | 250 | 180 | |
| Moment of Inertia | kg・m2 | 0.5×10-4 | 2.4×10-4 | 1.3×10-3 | 4.8×10-3 | 1.5×10-2 | 3.5×10-2 | 8.5×10-2 | 0.3 | |
| Mass | kg | 0.24 | 0.50 | 1.5 | 3.4 | 6.2 | 11.4 | 20 | 42 | |
| Shaft Bore Shape (Shaft Diameter) |
A | mm | 10 to 12 | 12 to 20 | 15 to 30 | 20 to 40 | 30 to 50 | 40 to 60 | 50 to 60 | 60 to 80 |
| B | mm | - | 14 to 17 | 15 to 25 | 20 to 35 | 30 to 50 | 40 to 60 | 50 to 60 | 60 to 90 | |
| C | mm | - | 12 to 16 | 16 to 25 | 20 to 35 | 30 to 45 | 35 to 60 | 50 to 60 | 60 to 90 | |
| D | mm | - | - | 16 to 25 | 20 to 35 | 30 to 45 | 35 to 60 | 50 to 60 | 60 to 90 | |
| E | mm | - | - | 16 to 20 | 20 to 30 | 30 to 40 | 35 to 55 | 50 to 60 | - | |
| F | mm | - | - | 16 to 22 | 20 to 35 | 30 to 45 | 35 to 60 | 50 to 60 | - | |
* Product specifications and dimensions are subject to change without notice. Confirm details when ordering.
