ST4
Torque Limiter with integral Gear Coupling for direct drives

0,2 - 250 KNm

ST4 TORQUE LIMITER WITH INTEGRAL GEAR COUPLING FOR DIRECT DRIVES

Specifications ST4

ST4 series 2 5 10 25 40 60 100 160 250
Adjustment range available from - to (KNm)
0.2-0.50.5-1.01.0-1.5
0.7-21.2-43.2-6
2-54-106-14
6-129-1815-25
12-2122-3232-45
11-1822-3630-55
24-5045-9080-110
25-5550-11080-165
100-170160-250
integrated modules (ST)  
3×ST106×ST106×ST10
3xST156xST156xST15
3xST 156xST 159xST 15
6xST159xST1512xST15
6xST306xST309xST30
3xST 306xST 309xST 30
3× ST706× ST709× ST70
3xST 706xST 709xST 70
8xST7112xST71
Overall length (mm) A1 280 350 390 460 580 650 780 860 1060
Flange OD (ST portion) (mm) B1 198 220 270 318 428 459 592 648 740
Mounting flange (ST portion) (mm) B2 192 209 259 300 399 418 560 618 724
Flange diameter (gear coupling) (mm) B3 168 200 225 265 330 370 438 525 639
Hub diameter (gear coupling) (mm) B4 130.5 158.4 183.4 211.5 275.5 307 367 423 553
Fit length/keyway length (mm) C1/2 62 76 90 105 135 150 190 220 290
Bore diameter Ø – Ø F7 (mm) D1/2 30-78 32-98 42-112 46-132 60-174 70-190 110-233 120-280 200-340
Length (mm) D1/2 63.5 78.5 92.5
108
139 154
194 225
296
Screw DIN 609 12.9 (mm) E1 6xM8 10xM12 12xM12 12xM16 14xM16 14xM18 14xM22 16xM24 22xM24
Tightening torque (Nm) E2 18 65 65 150 150 220 400 520 670
Distance (mm) F 110 138 159.5 202 238 275 318 360 458
Distance (mm) F 148 188 209.5 252 306 343 408 450 534
Actuation path (mm) L 3.5 4.5 4.5 4.5 8 8 10 10 10
Bolt circle diameter ST (mm) M 154 171 220 270 350 376 490 532 630
Moment of inertia (approx.) D max. (10-3 kgm2) N 108 244 529 1117 4363 6650 20611 33820 84926
Speed max. (1/min.) O 4000 3900 3700 3550 2750 2420 1950 1730 950
Approx. weight at D max. (kg)   2.5 45 65 100 225 293 570 718 1280
axial (mm)S1.5 2.5 2.5 3 4 4 4 5 6
angular (Grad)2×0.35° 2×0.35° 2×0.35° 2×0.35° 2×0.35° 2×0.35° 2×0.35° 2×0.35° 2×0.35°
CAD Portal 2 5 10 25 40 60 100 160 250
2D/3D Data 

Properties

  • Design:
    • with keyway or spline connection.
    • gear coupling for misalignment compensation.
    • torque modules evenly spaced around the circumference.
    • field adjustable within the selected range.
  • Temperature range: -30° C to +120° C (-22° F to +248° F)
  • Service life: Infinite life and maintenance free when operated within the technical specifications.
  • Tolerance: Tolerance between hub and shaft 0.02 – 0.07 mm.
  • Material:
    • torque limiter: high-strength, nitro-carburized steel
    • gear coupling ends: extremely wear resistant tooth geometry made from high-strength alloyed steel
    • surface nitro-carburized
  • Balancing: Standard balancing G16 (higher speeds upon request)
  • Properties of Torque Limiter model ST4:
    • high torque density
    • compensation for axial, lateral, and angular misalignment
    • low restoring forces
    • robust