Elastomer Jaw Couplings TNM E | RINGFEDER®

Two-part design - Standard hub

The coupling RINGFEDER® TNM E 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 synthetic rubber (Pb) which are joined together as an intermediate ring. The elastic intermediate ring can cushion impacts and torsional vibrations; it is oil-resistant and electrically conductive. The coupling is usable in every sense of rotation and installation position. 

TNM E

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CAD
Identifier
Size
TKNPb72
Nm
TKNPb82
Nm
nmax
1/min
d1kmax
mm
D1
mm
D2
mm
C1
mm
L
mm
Gwa
kg
Gwub
kg
WN0105 50 13 20 5000 19 50 33 25 52 0,2 0,4
WN0106 67 22 35 5000 28 67 46 30 62,5 0,5 1,0
WN0108 82 48 75 5000 32 82 53 40 83 0,9 1,8
WN0109 97 96 150 5000 42 97 69 50 103 1,7 3,4
WN0111 112 150 230 5000 48 112 79 60 123,5 2,6 5,3
WN0112 128 250 380 5000 55 128 90 70 143,5 4,1 8,2
WN0114 148 390 600 4500 65 148 107 80 163,5 6,3 12,7
WN0116 168 630 980 4000 75 168 124 90 183,5 9,6 19,3
WN0119 194 1050 1650 3500 85 194 140 100 203,5 13,8 27,9
WN0121 214 1500 2400 3000 95 214 157 110 224 19,1 38,2
WN0124 240 2400 3700 2750 110 240 179 120 244 26,7 53,4
WN0126 265 3700 5800 2500 120 265 198 140 285,5 37,5 75,0
WN0129 295 4900 7550 2250 130 295 214 150 308 47,9 95,7
WN0133 330 6400 9900 2000 150 330 248 160 328 66,5 132,9
WN0137 370 8900 14000 1750 170 370 278 180 368 93,9 187,7
WN0141 415 13200 20500 1500 190 415 315 200 408 129,7 259,3
WN0148 480 18000 28000 2100 210 480 315 220 448 164,4 328,7
WN0157 575 27000 41000 1800 230 575 350 240 488 233,5 467,0
CAD Identifier
Size
TKNPb72
ft-lbs
TKNPb82
ft-lbs
nmax
rpm
d1kmax
inch
D1
inch
D2
inch
C1
inch
L
inch
Gwa
lbs
Gwub
lbs
  WN0105 50 10 15 5000 0.74803 1.969 1.299 0.984 2.047 0.44 0.88
  WN0106 67 16 26 5000 1.10236 2.638 1.811 1.181 2.461 1.10 2.20
  WN0108 82 35 55 5000 1.25984 3.228 2.087 1.575 3.268 1.98 3.97
  WN0109 97 71 111 5000 1.65354 3.819 2.717 1.969 4.055 3.75 7.50
  WN0111 112 111 170 5000 1.88976 4.409 3.110 2.362 4.862 5.73 11.68
  WN0112 128 184 280 5000 2.16535 5.039 3.543 2.756 5.650 9.04 18.08
  WN0114 148 288 443 4500 2.55905 5.827 4.213 3.150 6.437 13.89 28.00
  WN0116 168 465 723 4000 2.95275 6.614 4.882 3.543 7.224 21.16 42.55
  WN0119 194 774 1217 3500 3.34645 7.638 5.512 3.937 8.012 30.42 61.51
  WN0121 214 1106 1770 3000 3.74015 8.425 6.181 4.331 8.819 42.11 84.22
  WN0124 240 1770 2729 2750 4.3307 9.449 7.047 4.724 9.606 58.86 117.73
  WN0126 265 2729 4278 2500 4.7244 10.433 7.795 5.512 11.240 82.67 165.35
  WN0129 295 3614 5569 2250 5.1181 11.614 8.425 5.906 12.126 105.60 210.98
  WN0133 330 4720 7302 2000 5.9055 12.992 9.764 6.299 12.913 146.61 292.99
  WN0137 370 6564 10326 1750 6.6929 14.567 10.945 7.087 14.488 207.01 413.81
  WN0141 415 9736 15120 1500 7.4803 16.339 12.402 7.874 16.063 285.94 571.66
  WN0148 480 13276 20652 2100 8.2677 18.898 12.402 8.661 17.638 362.44 724.66
  WN0157 575 19914 30240 1800 9.0551 22.638 13.780 9.449 19.213 514.78 1029.56

Characteristics

RINGFEDER® TNM E

Two-part design - standard hub. 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 only with move a part of the coupled machines (two part design).
  • Bores up to max. 230 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 RINGFEDER® 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 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 RINGFEDER® TNM coupling series, there are two different material hardnesses available as standard.

Pb 72 - nitrile butadien rubber (NBR) with a hardness of 72 Shore A.
Pb 82 - nitrile butadien rubber (NBR) with 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 declared compliant with the European Directive 2014/34/EU (ATEX). Please contact RINGFEDER POWER TRANSMISSION regarding the declaration of conformity according to 2014/34/EU and the effects of aggressive ambient media.

Downloads

Product Paper Elastomer Jaw Couplings RINGFEDER® GWE, TNM, TNS, TNB

Product Paper Elastomer Jaw Couplings RINGFEDER® GWE, TNM, TNS, TNB

Tech Paper Elastomer Jaw Couplings RINGFEDER® TNM E

Tech Paper Elastomer Jaw Couplings RINGFEDER® TNM E

Instruction Manual Elastomer Jaw Couplings RINGFEDER® TNM E

Instruction Manual Elastomer Jaw Couplings RINGFEDER® TNM E

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