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TSCHAN® TNM ETW2

One-part design with brake disk - Brake disk made of nodular graphite iron

The TSCHAN® TNM ETW is an torsionally flexible and shock-proof claw coupling with brake disc. They compensate for angular as well as radial and axial shaft misalignment within fixed tolerances. The torque is transmitted through an elastic transitional ring. The elastic transitional ring made of Perbunan (Pb) with nitrile rubber as the base material dampens shocks and torsional vibrations, is oil-proof, insensitive to temperature and normally electrically conductive. This prevents undesirable static charging, among other things. The coupling can be used for either direction of rotation and be installed in any position.

TSCHAN® TNM ETW

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metric inch
CAD Identifier A SB TKNPb82 TBR nmax d1f max d2f max D1 C1 L Gwub
    mm mm Nm Nm 1/min mm mm mm mm mm kg
  WN0311-250 250 12,7 230 450 4580 41,3 46,1 112 60 123,5 8,8
  WN0311-300 300 12,7 230 450 3820 41,3 46,1 112 60 123,5 11,7
  WN0312-300 300 12,7 380 550 3820 49,9 54 128 70 143,5 14,6
  WN0314-300 300 12,7 600 1000 3820 56 62 148 80 163,5 18,4
  WN0316-356 356 12,7 980 1600 3225 68 69,9 168 90 183,5 28,0
  WN0316-406 406 12,7 980 1600 2825 68 69,9 168 90 183,5 31,0
  WN0319-406 406 12,7 1650 2750 2825 82,6 82,6 194 100 203,5 39,1
  WN0319-457 457 12,7 1650 2750 2510 82,6 82,6 194 100 203,5 44,0
  WN0321-406 406 12,7 2400 3350 2825 88,4 92,1 214 110 224 48,8
  WN0321-514 514 12,7 2400 3350 2510 88,4 92,1 214 110 224,0 53,6
  WN0324-457 457 12,7 3700 4200 2510 96,6 104,8 240 120 244 67,0
  WN0324-514 514 12,7 3700 4200 2230 96,6 104,8 240 120 244 72,0
  WN0326-457 457 12,7 5800 8700 2510 114,3 114,3 265 140 285,5 89,4
  WN0326-514 514 12,7 5800 8700 2230 114,3 114,3 265 140 285,5 94,2
  WN0329-514 514 12,7 7550 9800 2230 117,5 117,5 295 150 308 113,5
  WN0329-610 610 12,7 7550 9800 1880 117,5 117,5 295 150 308 124,5
  WN0333-514 514 12,7 9900 10600 2230 139,7 139,7 330 160 328,0 149,3
  WN0333-610 610 12,7 9900 10600 1880 139,7 139,7 330 160 328 160,3
  WN0337-610 610 12,7 14000 13500 1880 158,8 158,8 370 180 368 212,7
  WN0337-711 711 12,7 14000 13500 1615 158,8 158,8 370 180 368 227,9
  WN0341-610 610 12,7 20500 16000 1880 174,7 177,8 415 200 408 279,5
  WN0341-711 711 12,7 20500 16000 1615 174,7 177,8 415 200 408 294,3
  WN0341-812 812 12,7 20500 16000 1410 174,7 177,8 415 200 408 326,4
  WN0341-915 915 12,7 20500 16000 1255 174,7 177,8 415 200 408 356,8
Identifier A SB TKNPb82 TBR nmax d1f max d2f max D1 C1 L Gwub
inch inch ft-lbs ft-lbs rpm inch inch inch inch inch lbs
WN0311-250 9.843 0.50 170 332 4580 1.626 1.815 4.409 2.362 4.862 19.40
WN0311-300 11.811 0.50 170 332 3820 1.626 1.815 4.409 2.362 4.862 25.79
WN0312-300 11.811 0.50 280 406 3820 1.965 2.126 5.039 2.756 5.650 32.19
WN0314-300 11.811 0.50 443 738 3820 2.205 2.441 5.827 3.150 6.437 40.57
WN0316-356 14.016 0.50 723 1180 3225 2.677 2.752 6.614 3.543 7.224 61.73
WN0316-406 15.984 0.50 723 1180 2825 2.677 2.752 6.614 3.543 7.224 68.34
WN0319-406 15.984 0.50 1217 2028 2825 3.252 3.252 7.638 3.937 8.012 86.20
WN0319-457 17.992 0.50 1217 2028 2510 3.252 3.252 7.638 3.937 8.012 97.00
WN0321-406 15.984 0.50 1770 2471 2825 3.480 3.626 8.425 4.331 8.819 107.59
WN0321-514 20.236 0.50 1770 2471 2510 3.480 3.626 8.425 4.331 8.819 118.17
WN0324-457 17.992 0.50 2729 3098 2510 3.803 4.126 9.449 4.724 9.606 147.71
WN0324-514 20.236 0.50 2729 3098 2230 3.803 4.126 9.449 4.724 9.606 158.73
WN0326-457 17.992 0.50 4278 6417 2510 4.500 4.500 10.433 5.512 11.240 197.09
WN0326-514 20.236 0.50 4278 6417 2230 4.500 4.500 10.433 5.512 11.240 207.68
WN0329-514 20.236 0.50 5569 7228 2230 4.626 4.626 11.614 5.906 12.126 250.22
WN0329-610 24.016 0.50 5569 7228 1880 4.626 4.626 11.614 5.906 12.126 274.48
WN0333-514 20.236 0.50 7302 7818 2230 5.500 5.500 12.992 6.299 12.913 329.15
WN0333-610 24.016 0.50 7302 7818 1880 5.500 5.500 12.992 6.299 12.913 353.40
WN0337-610 24.016 0.50 10326 9957 1880 6.252 6.252 14.567 7.087 14.488 468.92
WN0337-711 27.992 0.50 10326 9957 1615 6.252 6.252 14.567 7.087 14.488 502.43
WN0341-610 24.016 0.50 15120 11801 1880 6.878 7.000 16.339 7.874 16.063 616.19
WN0341-711 27.992 0.50 15120 11801 1615 6.878 7.000 16.339 7.874 16.063 648.82
WN0341-812 31.968 0.50 15120 11801 1410 6.878 7.000 16.339 7.874 16.063 719.59
WN0341-915 36.024 0.50 15120 11801 1255 6.878 7.000 16.339 7.874 16.063 786.61

TSCHAN® TNM ETW

One part design with brake disk in nodular cast iron. Elastic intermediate ring in different hardnesses: standard Pb72, hard Pb82.

General features

  • Torsionally flexible, compensate for angular, radial and axial shaft misalignment
  • Intermediate rings loaded in compression
  • Elastomers available in various shore hardness degrees
  • Suitable for temperatures from –30°C to +100°C
  • The elastic ring can be replaced without having to move the coupled machines (multi-part models)
  • Bores up to max. 280 mm
  • Torques up to TKn = 41,000 Nm / TKmax = 97,500 Nm
  • Speeds up to nmax = 5,000 rpm

INTRODUCTION

The rotationally resilient coupling of the TSCHAN® TNM series is flexible in all directions and therefore compensates for angular, parallel and axial shaft misalignments of the connected machines. Misalignments can be caused, for example, by inaccurate assembly, heat movements or settling phenomena.

Avoiding Torsional Vibration

By virtue of the rotational resilience of the coupling, dangerous torsional vibrations from the operational range of plant machinery can be transferred to rotational speed ranges in which no negative effects are to be expected. The elastic intermediate rings possess a high material damping capability which makes it possible for the couplings to keep the resonance enhancements within limits when passing through dangerous speed ranges, thereby protecting the coupled machines against damage. The couplings also mitigate torque shocks and cause a vibrating system that has been excited by an impact to come to rest very quickly due to the material damping qualities. The conduction of structure-borne noise is prevented.

Elastomer Materials

Synthetic rubbers are used as base material for the elastic elements of the TNM couplings. As a rule these are electrically conductive and therefore prevent undesirable static charges. For the elastic elements of the TSCHAN® TNM coupling series, there are two different material hardnesses available as standard.

  1. Perbunan (Pb 72) with nitrile rubber (NBR) as the basic material and a hardness of 72 Shore A.
  2. Perbunan (Pb 82) with nitrile rubber (NBR) as the basic material and a hardness of 82 Shore A.

The resilience of the individual elastomer materials is designated by their Shore hardness. From these values an indirect conclusion can be drawn with respect to the torques the coupling is able to transmit and its spring stiffness. For further details, please see the technical data sheet.

Environmental conditions

The employed elastomer materials operate reliably in ambient temperature ranges of –30° to +100°C. Please contact RINGFEDER POWER TRANSMISSION if higher ambient temperatures are involved. The influence of the temperature on the coupling size selection is explained in more detail in the below-mentioned design directives. It is only allowed to operate the coupling in normal industrial air. Aggressive media may attack the coupling components, bolts and elastic elements, and, therefore, present a danger to the operational safety of the coupling. The coupling can be certified in accordance with the European Directive 94/9/EC, also known as ATEX 95. Please contact RINGFEDER POWER TRANSMISSION regarding the declaration of conformity according to 94/9/EC and the effects of aggressive ambient media.

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