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TSCHAN® TNM LE

One-part design with screw-in flange externally centered

The coupling TSCHAN® TNM LE is a torsionally elastic and puncture-proof claw coupling. It balances out angular, radial and axial shaft misalignments within defined limits. The coupling transfers the torque via pressure loadable, elastic buffers of Perbunan (Pb) which are joined together as an intermediate ring. The elastic intermediate ring can cushion impacts and torsional vibrations; it is oil-tight and electrically conductive. The coupling is usable in every sense of rotation and installation position.

TSCHAN® TNM LE

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metric inch
CAD Identifier A TKNPb82 nmax d1kmax D1 d7 DPC7 nb7 C1 FK L
    mm Nm 1/min mm mm mm mm Stück mm mm mm
  WN0806-106 106 35 5000 28 67 6,6 94 6 30 8 47,5
  WN0808-120 120 75 5000 32 82 6,6 108 6 40 8 59
  WN0809-144 144 150 5000 45 97 9 128 6 50 10 73
  WN0811-158 158 230 5000 48 112 9 142 6 60 10 85,5
  WN0812-180 180 380 5000 55 128 11 160 6 70 13 98,5
  WN0814-200 200 600 4500 65 148 11 180 7 80 13 111,5
  WN0816-220 220 980 4000 75 168 11 200 8 90 13 127,5
  WN0819-248 248 1650 3500 85 194 14 224 8 100 16 141,5
  WN0821-274 274 2400 3000 95 214 14 250 8 110 16 156
  WN0824-314 314 3700 2750 110 240 18 282 8 120 20 169
  WN0826-344 344 5800 2500 120 265 18 312 8 140 20 195,5
  WN0829-380 380 7550 2250 130 295 18 348 9 150 22 210
  WN0833-430 430 9900 2000 150 330 22 390 9 160 25 224
  WN0837-480 480 14000 1750 170 370 22 440 10 180 25 250
  WN0841-575 575 20500 1500 190 415 26 528 10 200 30 273
  WN0848-615 615 28000 1400 210 480 26 568 10 220 30 293
  WN0857-692 692 41000 1200 230 575 26 645 10 240 30 313
Identifier A TKNPb82 nmax d1kmax D1 d7 DPC7 nb7 C1 FK L
inch ft-lbs rpm inch inch inch inch pcs. inch inch inch
WN0806-106 4.173 26 5000 1.10236 2.638 0.260 3.701 6 1.181 0.315 1.870
WN0808-120 4.724 55 5000 1.25984 3.228 0.260 4.252 6 1.575 0.315 2.323
WN0809-144 5.669 111 5000 1.77165 3.819 0.354 5.039 6 1.969 0.394 2.874
WN0811-158 6.220 170 5000 1.88976 4.409 0.354 5.591 6 2.362 0.394 3.366
WN0812-180 7.087 280 5000 2.16535 5.039 0.433 6.299 6 2.756 0.512 3.878
WN0814-200 7.874 443 4500 2.55905 5.827 0.433 7.087 7 3.150 0.512 4.390
WN0816-220 8.661 723 4000 2.95275 6.614 0.433 7.874 8 3.543 0.512 5.020
WN0819-248 9.764 1217 3500 3.34645 7.638 0.551 8.819 8 3.937 0.630 5.571
WN0821-274 10.787 1770 3000 3.74015 8.425 0.551 9.843 8 4.331 0.630 6.142
WN0824-314 12.362 2729 2750 4.3307 9.449 0.709 11.102 8 4.724 0.787 6.654
WN0826-344 13.543 4278 2500 4.7244 10.433 0.709 12.283 8 5.512 0.787 7.697
WN0829-380 14.961 5569 2250 5.1181 11.614 0.709 13.701 9 5.906 0.866 8.268
WN0833-430 16.929 7302 2000 5.9055 12.992 0.866 15.354 9 6.299 0.984 8.819
WN0837-480 18.898 10326 1750 6.6929 14.567 0.866 17.323 10 7.087 0.984 9.843
WN0841-575 22.638 15120 1500 7.4803 16.339 1.024 20.787 10 7.874 1.181 10.748
WN0848-615 24.213 20652 1400 8.2677 18.898 1.024 22.362 10 8.661 1.181 11.535
WN0857-692 27.244 30240 1200 9.0551 22.638 1.024 25.394 10 9.449 1.181 12.323

TSCHAN® TNM LE

One part design with flange, externally centred. 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 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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