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TSCHAN® TNM H

Multi-part design for dismounting the intermediate sleeves

The coupling TSCHAN® TNM H is a torsionally elastic and puncture-proof claw coupling with a removable intermediate piece, mainly for the drives of pumps. It levels out angular, radial and axial shaft misalignments within defined ranges. 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. Both coupling halves are divided in two, which enables a radial installation and de-installation of the reduction sleeve. The de-installation measurement between the flange hubs allows the changing of the elastic intermediate ring or the dismounting of the bearing block of a centrifugal pump without moving the motor. The de-installation measurement between the flange hubs allows the changing of the elastic intermediate ring or the dismounting of the bearing block of a centrifugal pump without moving the motor. The coupling is usable in every sense of rotation and installation position.

TSCHAN® TNM H

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metric inch
CAD Bezeichnung / Identifier TKNPb72 TKNPb82 nmax d1kmax D1 D2 C1 L LD Gwub
    Nm Nm 1/min mm mm mm mm mm mm kg
  WN0706-100 22 35 5000 30 67 45 30 160 48,5 2,5
  WN0706-120 22 35 5000 30 67 45 30 180 48,5 2,8
  WN0706-140 22 35 5000 30 67 45 30 200 68,5 3,1
  WN0708-100 48 75 5000 35 82 53 40 180 48,5 4,0
  WN0708-120 48 75 5000 35 82 53 40 200 48,5 4,0
  WN0708-140 48 75 5000 35 82 53 40 220 68,5 4,9
  WN0709-100 96 150 5000 45 97 66 50 200 48,5 6,4
  WN0709-120 96 150 5000 45 97 66 50 220 48,5 7,0
  WN0709-140 96 150 5000 45 97 66 50 240 68,5 7,7
  WN0711-100 150 230 5000 50 112 79 60 220 48 9,5
  WN0711-120 150 230 5000 50 112 79 60 240 48 10,3
  WN0711-140 150 230 5000 50 112 79 60 260 68 11,1
  WN0712-100 250 380 5000 60 128 90 70 240 48 13,2
  WN0712-120 250 380 5000 60 128 90 70 260 48 14,2
  WN0712-140 250 380 5000 60 128 90 70 280 68 15,1
  WN0712-180 250 380 5000 60 128 90 70 320 88 17,0
  WN0714-100 390 600 4500 65 148 107 80 260 48 18,4
  WN0714-140 390 600 4500 65 148 107 80 300 48 20,8
  WN0714-180 390 600 4500 65 148 107 80 340 88 23,3
  WN0716-100 630 980 4000 75 168 124 90 280 48 26,0
  WN0716-140 630 980 4000 75 168 124 90 320 48 28,9
  WN0716-180 630 980 4000 75 168 124 90 360 88 31,8
  WN0719-100 1050 1650 3500 85 194 140 100 300 48 35,7
  WN0719-140 1050 1650 3500 85 194 140 100 340 48 39,1
  WN0719-180 1050 1650 3500 85 194 140 100 380 88 42,6
  WN0719-250 1050 1650 3500 85 194 140 100 450 123 48,7
  WN0721-100 1500 2400 3000 95 214 157 110 320 48 47,6
  WN0721-140 1500 2400 3000 95 214 157 110 360 48 51,8
  WN0721-180 1500 2400 3000 95 214 157 110 400 88 56,0
  WN0721-250 1500 2400 3000 95 214 157 110 470 123 63,3
  WN0724-100 2400 3700 2750 110 240 179 120 340 48 66,5
  WN0724-140 2400 3700 2750 110 240 179 120 380 48 70,6
  WN0724-180 2400 3700 2750 110 240 179 120 420 88 74,7
  WN0724-250 2400 3700 2750 110 240 179 120 490 123 82,5
  WN0726-100 3700 5800 2500 120 265 198 140 380 48 91,1
  WN0726-140 3700 5800 2500 120 265 198 140 420 48 95,1
  WN0726-180 3700 5800 2500 120 265 198 140 460 88 99,1
  WN0726-250 3700 5800 2500 120 265 198 140 530 123 109,5
  WN0729-140 4900 7550 2250 130 295 214 150 440 67 123,5
  WN0729-180 4900 7550 2250 130 295 214 150 480 87 130,2
  WN0729-250 4900 7550 2250 130 295 214 150 550 122 140,2
  WN0733-140 6400 9900 2000 150 330 248 160 460 67 171,7
  WN0733-180 6400 9900 2000 150 330 248 160 500 87 180,5
  WN0733-250 6400 9900 2000 150 330 248 160 570 122 195,3
Bezeichnung / Identifier TKNPb72 TKNPb82 nmax d1kmax D1 D2 C1 L LD Gwub
ft-lbs ft-lbs rpm inch inch inch inch inch inch lbs
WN0706-100 26 5000 1.1811 2.638 1.772 1.181 6.299 1.909 5.51
WN0706-120 16 26 5000 1.1811 2.638 1.772 1.181 7.087 1.909 6.17
WN0706-140 16 26 5000 1.1811 2.638 1.772 1.181 7.874 2.697 6.83
WN0708-100 35 55 5000 1.37795 3.228 2.087 1.575 7.087 1.909 8.82
WN0708-120 35 55 5000 1.37795 3.228 2.087 1.575 7.874 1.909 8.82
WN0708-140 35 55 5000 1.37795 3.228 2.087 1.575 8.661 2.697 10.80
WN0709-100 71 111 5000 1.77165 3.819 2.598 1.969 7.874 1.909 14.11
WN0709-120 71 111 5000 1.77165 3.819 2.598 1.969 8.661 1.909 15.43
WN0709-140 71 111 5000 1.77165 3.819 2.598 1.969 9.449 2.697 16.98
WN0711-100 111 170 5000 1.9685 4.409 3.110 2.362 8.661 1.890 20.94
WN0711-120 111 170 5000 1.9685 4.409 3.110 2.362 9.449 1.890 22.71
WN0711-140 111 170 5000 1.9685 4.409 3.110 2.362 10.236 2.677 24.47
WN0712-100 184 280 5000 2.3622 5.039 3.543 2.756 9.449 1.890 29.10
WN0712-120 184 280 5000 2.3622 5.039 3.543 2.756 10.236 1.890 31.31
WN0712-140 184 280 5000 2.3622 5.039 3.543 2.756 11.024 2.677 33.29
WN0712-180 184 280 5000 2.3622 5.039 3.543 2.756 12.598 3.465 37.48
WN0714-100 288 443 4500 2.55905 5.827 4.213 3.150 10.236 1.890 40.57
WN0714-140 288 443 4500 2.55905 5.827 4.213 3.150 11.811 1.890 45.86
WN0714-180 288 443 4500 2.55905 5.827 4.213 3.150 13.386 3.465 51.37
WN0716-100 465 723 4000 2.95275 6.614 4.882 3.543 11.024 1.890 57.32
WN0716-140 465 723 4000 2.95275 6.614 4.882 3.543 12.598 1.890 63.71
WN0716-180 465 723 4000 2.95275 6.614 4.882 3.543 14.173 3.465 70.11
WN0719-100 774 1217 3500 3.34645 7.638 5.512 3.937 11.811 1.890 78.71
WN0719-140 774 1217 3500 3.34645 7.638 5.512 3.937 13.386 1.890 86.20
WN0719-180 774 1217 3500 3.34645 7.638 5.512 3.937 14.961 3.465 93.92
WN0719-250 774 1217 3500 3.34645 7.638 5.512 3.937 17.717 4.843 107.37
WN0721-100 1106 1770 3000 3.74015 8.425 6.181 4.331 12.598 1.890 104.94
WN0721-140 1106 1770 3000 3.74015 8.425 6.181 4.331 14.173 1.890 114.20
WN0721-180 1106 1770 3000 3.74015 8.425 6.181 4.331 15.748 3.465 123.46
WN0721-250 1106 1770 3000 3.74015 8.425 6.181 4.331 18.504 4.843 139.55
WN0724-100 1770 2729 2750 4.3307 9.449 7.047 4.724 13.386 1.890 146.61
WN0724-140 1770 2729 2750 4.3307 9.449 7.047 4.724 14.961 1.890 155.65
WN0724-180 1770 2729 2750 4.3307 9.449 7.047 4.724 16.535 3.465 164.69
WN0724-250 1770 2729 2750 4.3307 9.449 7.047 4.724 19.291 4.843 181.88
WN0726-100 2729 4278 2500 4.7244 10.433 7.795 5.512 14.961 1.890 200.84
WN0726-140 2729 4278 2500 4.7244 10.433 7.795 5.512 16.535 1.890 209.66
WN0726-180 2729 4278 2500 4.7244 10.433 7.795 5.512 18.110 3.465 218.48
WN0726-250 2729 4278 2500 4.7244 10.433 7.795 5.512 20.866 4.843 241.41
WN0729-140 3614 5569 2250 5.1181 11.614 8.425 5.906 17.323 2.638 272.27
WN0729-180 3614 5569 2250 5.1181 11.614 8.425 5.906 18.898 3.425 287.04
WN0729-250 3614 5569 2250 5.1181 11.614 8.425 5.906 21.654 4.803 309.09
WN0733-140 4720 7302 2000 5.9055 12.992 9.764 6.299 18.110 2.638 378.53
WN0733-180 4720 7302 2000 5.9055 12.992 9.764 6.299 19.685 3.425 397.93
WN0733-250 4720 7302 2000 5.9055 12.992 9.764 6.299 22.441 4.803 430.56

TSCHAN® TNM H

Multi-part design, to remove the intermediate spacer. Disassembly of the pump impeller without axial movement of the driven parts. 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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