HAFNER Maschinenbau GmbH
Daimlerring 10
63839 Kleinwallstadt
Phone: (0 60 22) 65 58 10
Fax: (0 60 22) 65 54 09
Products
Metal bellows couplings
SK
SK
- backlash-free
- high torsional stiffness
- very low mass inertia torque
- compensation of alignment mistakes
- maintenance-free
The size of the coupling should be selected so that the nominal torque is greater than the highest torque to be regularly transmitted. (Acceleration or load torque). The shaft misalignments must not exceed the previously mentioned values. Otherwise this will limit the working life of the coupling.
hub material: steel
bellows material: high-grade steel
ordering example: SK 100 Ø 22H7 / Ø 32H7
Technical facts
| Type - SK | 15 | 40 | 60 | 100 | 150 | 200 | 350 | 500 |
Nennmoment (Nm) |
15 | 40 | 60 | 100 | 150 | 200 | 350 | 500 |
| Torsionssteife 103 (Nm/rad) | 8,5 | 26,5 | 33,5 | 65 | 80 | 110 | 160 | 190 |
| Federsteife lateral (N/mm) axial (N/mm) |
87 | 175 | 262 | 225 | 357 | 502 | 611 | 765 |
| 13 | 27,5 | 49 | 35 | 78,5 | 78,5 | 60 | 80 | |
| max. Wellenersatz lateral (mm) axial (mm) |
+/-0,2 | +/-0,2 | +/-0,2 | +/-0,22 | +/-0,22 | +/-0,2 | +/-0,2 | +/-0,17 |
| +/-1 | +/-1 | +/-1 | +/-1,3 | +/-1,25 | +/-1,25 | +/-1,5 | +/-1,3 | |
Trägheitsmoment 10 -3 (kgm 2) |
0,18 | 0,36 | 0,37 | 1,34 | 1,39 | 3 | 6,2 | 6,4 |
| Masse ca. (kg) |
0,5 | 0,8 | 0,83 | 1,46 | 1,46 | 2,5 | 3,6 | 3,6 |
| Klemmschrauben DIN 933-10.9 |
M5 | M5 | M5 | M6 | M6 | M6 | M8 | M8 |
Anzugsmoment MA(Nm) |
7 | 7 | 7 | 12 | 12 | 12 | 30 | 30 |
The shaft borings are finished to customer’s specifications. Please quote them.
|
SK-15 Nenndrehmoment 15 Nm |
SK-40 Nenndrehmoment 40 Nm |
|
SK-60 Nenndrehmoment 60 Nm |
SK-100 Nenndrehmoment 100 Nm |
|
SK-150 Nenndrehmoment 150 Nm |
SK-200 Nenndrehmoment 200 Nm |
|
SK-350 Nenndrehmoment 350 Nm |
SK-500 Nenndrehmoment 500 Nm |
Technical chances reserved