Rigid coupling STK
With exactly aligned shafts, an offset compensation is not necessary, here the rigid coupling or shell coupling is the right solution. The STK couplings are available in the version GS = sliced or GT = split.
- 6 to 1900 Nm
- Zero Backlash
- Rigid shaft connection
- Sliced or splitted version available
- Bores from 6 to 50mm
| Model | Max. Torque (Nm) Steel (ST) Sliced/Split | Max. Torque (Nm) Stainless steel (VA) Sliced (one piece) | Max. Torque (Nm) Stainless steel (VA) Split (two piece) | Tightening torque of screws [Nm] Steel [ST] | Tightening torque of screws [Nm] Stainless steel [VA] | Mass [kg] |
| STK-6 | 30 | 12 | 12 | 2.1 | 1.2 | 0.054 |
| STK-8 | 50 | 16 | 18 | 2.1 | 1.2 | 0.110 |
| STK-10 | 100 | 25 | 30 | 5.1 | 2.9 | 0.200 |
| STK-12 | 105 | 32 | 36 | 5.1 | 2.9 | 0.200 |
| STK-14 | 180 | 42 | 67 | 10.0 | 5.7 | 0.300 |
| STK-15 | 190 | 50 | 72 | 10.0 | 5.7 | 0.300 |
| STK-16 | 200 | 60 | 77 | 10.0 | 5.7 | 0.300 |
| STK-17 | 210 | 70 | 79 | 10.0 | 5.7 | 0.300 |
| STK-19 | 300 | 90 | 130 | 17.5 | 10.0 | 0.550 |
| STK-20 | 350 | 100 | 137 | 17.5 | 10.0 | 0.550 |
| STK-25 | 400 | 110 | 171 | 17.5 | 10.0 | 0.670 |
| STK-30 | 475 | 150 | 206 | 17.5 | 10.0 | 0.980 |
| STK-35 | 1100 | 330 | 438 | 42.0 | 24.0 | 1.900 |
| STK-40 | 1300 | 400 | 445 | 42.0 | 24.0 | 2.900 |
| STK-50 | 2200 | 690 | 1000 | 83.0 | 48.0 | 3.600 |
| STK-60 | 3000 | 840 | 1100 | 83.0 | 48.0 | 5.500 |
| STK-70 | 4000 | 1500 | 1600 | 145.0 | 82.0 | 12.800 |
| STK-80 | 5000 | 1800 | 1900 | 145.0 | 82.0 | 17.000 |
| Model | Di | Da | L | R | C Sliced [one-piece] | C Split [two-piece] |
| STK-6 | 6 | 18 | 30 | 20.0 | 4-M3 | 8-M3 |
| STK-8 | 8 | 24 | 35 | 24.5 | 4-M3 | 8-M3 |
| STK-10 | 10 | 29 | 45 | 32.0 | 4-M4 | 8-M4 |
| STK-12 | 12 | 29 | 45 | 32.0 | 4-M4 | 8-M4 |
| STK-14 | 14 | 34 | 50 | 39.5 | 4-M5 | 8-M5 |
| STK-15 | 15 | 34 | 50 | 39.5 | 4-M5 | 8-M5 |
| STK-16 | 16 | 34 | 50 | 39.5 | 4-M5 | 8-M5 |
| STK-17 | 17 | 34 | 50 | 39.5 | 4-M5 | 8-M5 |
| STK-19 | 19 | 42 | 65 | 47.5 | 4-M6 | 8-M6 |
| STK-20 | 20 | 42 | 65 | 47.5 | 4-M6 | 8-M6 |
| STK-25 | 25 | 45 | 75 | 51.0 | 4-M6 | 8-M6 |
| STK-30 | 30 | 53 | 83 | 58.0 | 4-M6 | 8-M6 |
| STK-35 | 35 | 67 | 95 | 72.0 | 4-M8 | 8-M8 |
| STK-40* | 40 | 77 | 108 | 77.5 | 4-M8 | 8-M8 |
| STK-50* | 50 | 85 | 124 | 91.0 | 4-M10 | 8-M10 |
| STK-60* | 60 | 100 | 150 | 102.0 | 4-M10 | 8-M10 |
| STK-70* | 70 | 122 | 220 | ─ | 4-M12 | 8-M12 |
| STK-80* | 80 | 140 | 220 | ─ | 4-M12 | 8-M12 |
*For sliced couplings with these sizes, the slit is on the outside.
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