ST2
Torque Limiter with integral Elastomer Jaw Coupling for direct drives

0,2 - 165 KNm

ST2 TORQUE LIMITER WITH INTEGRAL ELASTOMER JAW COUPLING FOR DIRECT DRIVES

Specifications ST2

ST2 series 2 5 10 25 40 60 100 160
Adjustment range available from - to (KNm)
0.2-0.50.5-1.01-1.5
0,7-21,2-43,2-5
2-54-106-14
6-129-1815-25
12-2122-3232-45
11-1822-3630-55
24-5045-9080-110
25-5550-11080-165
integrated modules (ST)  
3xST106xST106xST10
3xST156xST156xST15
3xST156xST159xST15
6xST159xST1512xST15
6×ST306×ST309×ST30
3xST 306xST 309xST 30
3×ST706×ST709×ST70
3xST 706xST 709xST 70
Overall length ± 2 (mm) A1 264 313 360 437 565 580 716 730
Length of torque limiting portion (mm) A2120 150 183 230 305 320 396 410
Flange OD (ST portion) (mm) B1 198 220 270 318 428 459 592 648
Flange OD (elastomer portion) (mm) B2221 250 290 330 432 432 553 553
Fit length/keyway length D1 (mm) C1 82 89 97 116 160 160 230 230
Fit length/keyway length D2 (mm) C2 100 121 120 155 170 220 280 290
Bore depth (torque limiting portion) (mm) C3 100 124 158 200 210 275 280 360
Bore diameter (elastomer portion) Ø – Ø F7 (mm) D1 30-80 40-100 40-105 60-130 90-170 80-160 100-200 100-200
Bore diameter (torque limiting portion) Ø – Ø F7 (mm) D2 30-75 40-90 40-110 60-140 90-170 80-200 100-200 100-290
Length to cover (mm) E165 70 70
125 113 112
152 152
Length to (cover removed) (mm)E2 24 23 22
65 39 39
65 65
Hub diameter (mm)F130 145 160 200 255 225 300 300
Bore for fastening screw (mm)Gmax75 max90 max110 maxø140 maxø144 max200 maxø216 max290
Distance (mm)L10.5 16.5 45 83 102 99 128 135
Distance (mm)M51.5 66.5 95 130 170 167 218 225
Actuation path (mm)N3.5 4 4 4 7.5 7.5 10 10
Bolt circle diameter ST (mm)O154 171 220 270 350 376 490 532
Hub outside diameter (mm)P104 120 170 218 265 295 380 418
Moment of inertia (approx.) D max. (10-3 kgm2)152 289 854 1850 6010 8960 21890 36858
Speed max. (1/min.)3400 3000 2400 2000 1800 1800 1500 1500
Approx. weight at D max. & 9 SGMt (kg)29 43.7 93 115 271 287 642 729
axial 1.5 1.5 1.5 1.5 2 2 2.5 2.5
lateral (mm)0.3 0.4 0.4 0.5 0.6 0.6 0.7 0.7
angular (Grad)1 1 1 1 1 1 1 1
Dynamic torsional stiffness
at TKN (Standard A Insert) (103 Nm/rad)
58 92 145 230 500 580 850 1000
CAD Portal 2 5 10 25 40 60 100 160
2D/3D Data 

Properties

  • Design:
    • with keyway or spline connection
    • elastomer segments for misalignment compensation
    • torque modules evenly spaced around the circumference
    • field adjustable within the selected range
  • Temperature range: see table
  • Service life: Infinite life and maintenance free when operated within the technical specifications.
  • Tolerance: Tolerance between hub and shaft 0.02 – 0.07 mm.
  • Balancing: Standard balancing G16, (higher speeds upon request)
  • Material:
    • torque limiter: High-strength, nitro-carburized steel
    • elastomer segments: precision molded
    • wear resistant rubber compound (75-80 Shore A)
    • elastomer coupling: coupling hubs made from high-strength
    • cast steel (coated)
  • Properties of Torque Limiter model ST2:
    • vibration damping
    • compensation for axial, lateral,and angular misalignment
    • precise overload protection
    • mounts axially