SK5
Torque Limiter with clamping hub and press-fit version

0,1 - 850 Nm

SK5 TORQUE LIMITER WITH CLAMPING HUB AND PRESS-FIT VERSION

Specifications SK5

SK5 series 1,5 2 4,5 10 15 30 60 80 150 300 500 800
Adjustment range available
from - to (approx. values) (Nm)
TKN
0.1-0.6
0.4-1
0.8-1.5
0.2-1.5
0.5-2
1-3
3-6
2-6
4-12
5-10
8-20
10-25
20-40
10-30
25-80
20-70
30-90
20-70
45-150
100-200
150-240
200-320
80-200
200-350
300-500
400-650
500-800
650-850
Adjustment range available from - to (approx. values), full disengagement (Nm)TKN0.3-0.8
0.6-1.3
0.2-1
0.7-2
2.5-4.5 2-5
5-10
7-15 8-20
16-30
20-40
30-60
20-60
40-80
80-150 120-200
160-300
60-150
100-300
250-500
200-400
450-800
Overall length +0,5 (mm)A44
4854
6068
7079
7683
8997
105115
115127
116128
143157
166180
196
Overall length +0,5, full disengagement (mm)AF44
4854
6068
7079
7683
8997
105115
117129
118130
146160
170184
207
Actuation ring Ø (mm)B23 29 35 45 55 65 73 92 92 120 135 152
Actuation ring Ø, full disengagement (mm)BF24 32 42 51.5 62 70 83 98 98 132 155 177
Fit length (mm)C1 /
C2
14/11 16/13 19/16 21/16 28/22 33/27 39/31 43/35 43/35 52/42 61/52 74/48
Inner diameter
from Ø to Ø H7 (mm)
D1
3-8 4-12 5-16 5-20 8-22 10-25 12-32 14-38 14-38 30-56 35-60 40-62
Inner diameter
from Ø to Ø H7 (mm)
D2
3-8 4-12 5-14 5-20 8-26 10-30 12-32 14-42 14-42 30-60 35-60 40-75
Inner diameter
from Ø to Ø H7 (inch)
D1
0,125"-
0,313"
0,187"-
0,437"
0,250"-
0,625"
0,250"-
0,750"
0,375"-
0,750"
0,437"-
0,875"
0,500"-
1,250"
0,625"-
1,375"
0,625"-
1,375"
1,250"-
2,125"
1,500"-
2,250"
1,625"-
2,375"
Inner diameter
from Ø to Ø H7 (inch)
D2
0,125"-
0,313"
0,187"-
0,437"
0,250"-
0,500"
0,250"-
0,750"
0,375"-
1,000"
0,437"-
1,125"
0,500"-
1,250"
0,625"-
1,625"
0,625"-
1,625"
1,250"-
2,250"
1,500"-
2,250"
1,625"-
2,875"
Outer diameter of coupling (mm)E19 25 32 40 49 55 66 81 81 110 123 134
Distance (mm)F12 13 15 17 19 24 30 31 31 35 45 50
Distance,
(full disengagement) (mm)
FF
11.5 12 14 16 19 22 29 31 30 36 43 54
Distance (mm)G3.5 4 5 5 6.5 7.5 9.5 11 11 13 17 18
Distance between centers (mm)H6 8 10 15 17 19 23 27 27 39 41 2x48
Screw ISO 4762IM2.5 M3 M4 M4 M5 M6 M8 M10 M10 M12 M16 2xM16
Tightening torque (Nm)I1 2 4 4.5 8 15 40 50 70 130 200 250
Pretensioning, approx.K0.1-0.5 0.2-0.7 0.2-0.7 0.2-1.0 0.2-1.0 0.5-1.0 0.5-1.0 0.5-1.0 0.5-1.0 0.5-1.5 0.5-2.0 0.5-2.0
Axial recovery of coupling max (N)4
85
1510
2530
2012
5030
7045
4832
8252
157106
14096
200
Approx. weight (kg)0.038 0.07 0.2 0.3 0.4 0.6 1.4 2 2.4 5.9 9.6 15
Moment of interia
(10-3 kgm2)
Jges
0.01 0.01 0.02
0.060.07
0.100.15
0.270.32
0.750.80
1.801.90
2.502.80
6.57.0
13.017.0
50
Torsional stiffness
(103 Nm/rad)
CT
0.7
1.21.3
75
87
1210
1816
4031
6845
9060
220190
260250
390
Lateral misalignment max. (mm)0.15
0.150.20
0.200.25
0.200.30
0.150.20
0.200.25
0.200.25
0.200.25
0.200.25
0.250.30
0.300.35
0.35
Angular misalignment max. (degrees)1
11.5
1.52
1.52
11.5
11.5
11.5
11.5
11.5
1.52
22.5
2.5
Lateral spring stiffness (N/mm)70
4030
29045
280145
475137
900270
1200420
920290
1550435
37501050
2500840
2000
Actuation path (mm)0.7 0.8 0.8 1.2 1.5 1.5 1.7 1.9 1.9 2.2 2.2 2.2
CAD Portal 1,5 2 4,5 10 15 30 60 80 150 300 500 800
2D/3D Data 

Properties

  • Design: With clamping hub and one radial screw ISO 4762.
  • Temperature range: -30° C to +100° C (-22° F to +212° F)
  • Backlash: Absolutely backlash free through frictional clamping connection.
  • Service life: Maintenance free when operated within the
technical specifications.
  • Tolerance: Tolerance between hub and shaft 0.01 – 0.05 mm.
  • Material:
    • bellows: stainless steel
    • 
torque limiting portion: high-strength, hardened steel
    • hub material: series 80 and below: aluminum;
    • 
series 150 and up: steel
  • Properties of Torque Limiter model SK5:
    • absolutely backlash-free and torsionally rigid
    • maintenance free
    • low moment of interia
    • actuation ring moves to trigger external sensor
    • disengagement within 1 - 3 msecs.