R+W: Safety Coupling STN, Torque Limiters, Torque Limiter Couplings

SK Torque Limiters

MODEL SERIES ST / SK 0.1 - 160,000 NM|

Series from 1,000 - 160,000 Nm

Data table Torque Limiter STN

STN Series		10			25			60			160
Adjustment range		1-6	2-10	6-18	2-8	4-15	10-25	8-18	15-35	30-60	20-50	40-100	80-160
available from - to (KNm)		3xST 15	6xST 15	9xST 15	3xST 15	6xST 15	9xST 15	3xST 30	6xST 30	9xST 30	3xST 70	6xST 70	9xST 70
Overall length (mm)	A₁	210			227			318			425
Flange outside diameter (mm)	B	270			318			459			648
Fit length / keyway length (mm)	C₁	147			152			218			305
Effective clamping length (mm)	C₂	62			67			93			125
Bore diameter possible Ø to Ø F7 (mm)	D₁	65-110			70-150			80-200			140-290
Bore diameter max. Ø F7 with keyway (mm)	D₁	100			140			180			270
Bore diameter possible Ø to Ø F7 (inch)	D₁	2.500"- 4.250"			2.750"- 5.875"			3.125"- 7.875"			5.500"- 11.375"
Bore diameter max. Ø F7 with keyway (inch)	D₁	3.975"			5.500"			7.000"			10.500"
Inside diameter (mm)	D₂	110,2			140,2			200,2			290,2
Flange centering diameter H7 (mm)	E	170			210			300			450
Bolt circle diameter ±0.3 (mm)	F	220			260			360			570
Outside diameter h7 (mm)	G	259			298			418			618
Fastening threads	H	12 x M16			12 x M16			12 x M20			12 x M24
Thread depth (mm)	I	25			30			35			40
Fit length (mm)	J	6			8			8			10
Tightening screw ISO 4017	K	8xM16			12xM16			12xM20			12xM24
Tightening torque (Nm)	K	180			180			300			710
Distance (mm)	L	56			80			94			151
Distance (mm)	M	122			127			163			240
Actuation path (mm)	N	4			4			7,5			10
Bolt circle diameter - modules (mm)	O	220			270			376			532
Hub outside diameter (mm)	P	218			278			378			535
Moment of inertia (approx.) D max. (10¯³ kgm²)		446			789			5700			30700
Speed max. (1/min.)		4200			3800			2500			2000
Allowable max. radial force standard* (KN)		40			60			100			200
Approx. weight at D max. (kg)		50			65			200			550

Mounting example with timing belt pulley and conical clamping hub

ex_stn Order example for Torque Limiter St1

Last update:08.04.2010