Stepflex STF
The Stepflex STF Model, developed in 2016, impresses with its combination of jaw coupling and disc pack coupling technology. The power transmission takes place via the internal jaws, wherein the flexibility is achieved by the two softer green plastic elements.
- 0.5 to 60 Nm
- Zero Backlash
- High flexibility
- Perfect damping characteristics
- Max. 10‘000 rpm
| Model | Rated torque (Nm) | Max. torque (Nm) | Misalignment parallel (mm) | Misalignment angular (°) | Misalignment axial (mm) | Max. rpm (min-1) | Torsional stiffness (Nm/rad) | Inertia (kg·m2) | Mass (kg) |
| STF-013SA1 | 0.5 | 1 | 0.15 | 1.5 | ±0.2 | 10000 | 15 | 0.11×10-6 | 0.004 |
| STF-016SA1 | 1 | 2 | 0.15 | 1.5 | ±0.2 | 10000 | 27 | 0.31×10-6 | 0.009 |
| STF-019SA1 | 1.5 | 3 | 0.15 | 1.5 | ±0.2 | 10000 | 38 | 0.70×10-6 | 0.013 |
| STF-024SA1 | 2.5 | 5 | 0.15 | 1.5 | ±0.2 | 10000 | 127 | 1.89×10-6 | 0.023 |
| STF-029SA1 | 4 | 8 | 0.2 | 1.5 | ±0.3 | 10000 | 201 | 4.40×10-6 | 0.034 |
| STF-034SA1 | 6 | 12 | 0.2 | 1.5 | ±0.3 | 10000 | 371 | 9.77×10-6 | 0.056 |
| STF-039SA1 | 8.5 | 17 | 0.2 | 1.5 | ±0.3 | 10000 | 485 | 21.13×10-6 | 0.091 |
| STF-044SA1 | 15 | 30 | 0.2 | 1.5 | ±0.3 | 10000 | 996 | 37.30×10-6 | 0.12 |
| STF-056SA1 | 30 | 60 | 0.2 | 1.5 | ±0.3 | 10000 | 2075 | 125.5×10-6 | 0.251 |
| Model | d1/d2 Min. | d1/d2 Max. | D | L | LF | S | A | C | M | Nm |
| STF-013SA1 | 3 | 5 | 13 | 18 | 6 | 6 | 3.9 | 2 | 1-M1.6 | 0.28 |
| STF-016SA1 | 3 | 6 | 16 | 22 | 7.5 | 7 | 4.8 | 2.5 | 1-M2 | 0.5 |
| STF-019SA1 | 3 | 8 | 19 | 25 | 9 | 7 | 5.8 (6) | 3.15 | 1-M2.5 (M2) | 1.1 (0.5) |
| STF-024SA1 | 5 | 10 | 24 | 27 | 9 | 9 | 8.7 | 3.15 | 1-M2.5 | 1.1 |
| STF-029SA1 | 5 | 14 | 29 | 30 | 10 | 10 | 11 | 3.3 | 1-M2.5 | 1.1 |
| STF-034SA1 | 5 | 16 | 34 | 34 | 12 | 10 | 12.5 | 3.75 | 1-M3 | 1.9 |
| STF-039SA1 | 6 | 19 | 39 | 41 | 15.5 | 10 | 14 | 4.5 | 1-M4 | 4.1 |
| STF-044SA1 | 8 | 24 | 44 | 48 | 15.5 | 17 | 17 | 4.5 | 1-M4 | 4.1 |
| STF-056SA1 | 8 | 30 | 56 | 60 | 20.5 | 19 | 22 | 6 | 1-M5 | 8.5 |
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