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TSCHAN® TNB BHDD

Multi-part design with VKR buffers - Removable claw rings

The TSCHAN® TNB BHDD - coupling is a torsionally flexible, puncture proof claw coupling. It compensates for angular, radial and axial shaft misalignments within defined limits. The coupling transmits torque through elastic buffers loaded in shear. These buffers come in Perbunan (Pb) or polyurethane (Vk), as a standard VkR. These elastic buffers dampen shocks and torsional vibrations and are resistant to oil. When the intermediate part is removed it is easily possible to check the rotational direction of the drive. The coupling is suitable for use in every direction of rotation and installation position.

TSCHAN® TSCHAN B BHDD

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metric inch
CAD Identifier TKN nmax d1f max d2f max D1 D2 C1 L L2 Gwub
    Nm 1/min mm mm mm mm mm mm mm kg
  WB0624-A 2500 4100 82,6 82,6 240 140 130 360 113 58
  WB0624-B 2500 4100 95,3 95,3 240 150 150 400 133 68
  WB0630-A 6000 3300 104,8 104,8 300 170 160 438 139 109
  WB0630-B 6000 3300 127 127 300 200 186 490 165 140
  WB0635-A 10500 2800 114,3 114,3 350 180 180 478 159 139
  WB0635-B 10500 2800 158,8 158,8 350 250 231 580 210 238
  WB0640-A 16000 2450 130,2 130,2 400 210 190 512 167 203
  WB0640-B 16000 2450 177,8 177,8 400 280 239 610 216 321
  WB0645-A 21000 2200 158,8 158,8 450 250 200 532 177 266
  WB0645-B 21000 2200 187 187 450 300 239 610 216 386
  WB0650-A 35000 2000 165,1 165,1 500 270 228 608 199 380
  WB0650-B 35000 2000 203,2 203,2 500 330 279 710 250 536
  WB0655-A 45000 1800 184,2 184,2 550 280 228 608 199 427
  WB0655-B 45000 1800 217,5 217,5 550 350 279 710 250 613
  WB0660-A 55000 1650 212,73 212,73 600 330 258 678 229 595
  WB0660-B 55000 1650 232,5 232,5 600 385 299 760 270 782
  WB0665-A 65000 1500 228,6 228,6 650 350 258 688 225 688
  WB0665-B 65000 1500 232,5 232,5 650 385 299 770 266 832
  WB0670-A 90000 1400 228,6 228,6 700 370 298 786 263 914
  WB0670-B 90000 1400 271 271 700 450 345 880 310 1241
  WB0680-A 120000 1200 279,4 279,4 800 450 338 866 303 1350
  WB0680-B 120000 1200 304,8 304,8 800 490 365 920 330 1570
  WB0690-A 180000 1100 304,8 304,8 900 480 338 878 297 1601
  WB0690-B 180000 1100 366,9 366,9 900 590 399 1000 358 2295
Identifier TKN nmax d1f max d2f max D1 D2 C1 L L2 Gwub
ft-lbs rpm inch inch inch inch inch inch inch lbs
WB0624-A 1844 4100 3.252 3.252 9.449 5.512 5.118 14.173 4.449 127.87
WB0624-B 1844 4100 3.752 3.752 9.449 5.906 5.906 15.748 5.236 149.91
WB0630-A 4425 3300 4.126 4.126 11.811 6.693 6.299 17.244 5.472 240.30
WB0630-B 4425 3300 5.000 5.000 11.811 7.874 7.323 19.291 6.496 308.65
WB0635-A 7744 2800 4.500 4.500 13.780 7.087 7.087 18.819 6.260 306.44
WB0635-B 7744 2800 6.252 6.252 13.780 9.843 9.094 22.835 8.268 524.70
WB0640-A 11801 2450 5.126 5.126 15.748 8.268 7.480 20.157 6.575 447.54
WB0640-B 11801 2450 7.000 7.000 15.748 11.024 9.409 24.016 8.504 707.68
WB0645-A 15489 2200 6.252 6.252 17.717 9.843 7.874 20.945 6.968 586.43
WB0645-B 15489 2200 7.362 7.362 17.717 11.811 9.409 24.016 8.504 850.99
WB0650-A 25815 2000 6.500 6.500 19.685 10.630 8.976 23.937 7.835 837.76
WB0650-B 25815 2000 8.000 8.000 19.685 12.992 10.984 27.953 9.843 1181.68
WB0655-A 33191 1800 7.252 7.252 21.654 11.024 8.976 23.937 7.835 941.37
WB0655-B 33191 1800 8.563 8.563 21.654 13.780 10.984 27.953 9.843 1351.43
WB0660-A 40566 1650 8.375 8.375 23.622 12.992 10.157 26.693 9.016 1311.75
WB0660-B 40566 1650 9.154 9.154 23.622 15.157 11.772 29.921 10.630 1724.02
WB0665-A 47942 1500 9.000 9.000 25.591 13.780 10.157 27.087 8.858 1516.78
WB0665-B 47942 1500 9.154 9.154 25.591 15.157 11.772 30.315 10.472 1834.25
WB0670-A 66381 1400 9.000 9.000 27.559 14.567 11.732 30.945 10.354 2015.03
WB0670-B 66381 1400 10.669 10.669 27.559 17.717 13.583 34.646 12.205 2735.94
WB0680-A 88508 1200 11.000 11.000 31.496 17.717 13.307 34.094 11.929 2976.24
WB0680-B 88508 1200 12.000 12.000 31.496 19.291 14.370 36.220 12.992 3461.26
WB0690-A 132763 1100 12.000 12.000 35.433 18.898 13.307 34.567 11.693 3529.60
WB0690-B 132763 1100 14.445 14.445 35.433 23.228 15.709 39.370 14.094 5059.61

TSCHAN®-TNB Type BHDD

Multi-part design with radially removable central section and VkR buffer. Easy replacement of the elastic buffer without axial movement of the coupled machines. Easy assembly of the drive train due to the insertable central section.

General features

  • Torsionally flexible, compensate for angular, radial and axial shaft misalignment
  • Buffers loaded in compression
  • Buffers can be replaced radially without having to move the coupled machines
  • Elastomers available in various shore hardness degrees
  • Suitable for temperatures from –30°C to +100°C
  • Outer diameter up to 1,275 mm
  • Bores up to max. 400 mm
  • Torques up to TKn = 260,000 Nm / TKmax = 780,000 Nm
  • Speeds up to nmax = 4,100 rpm

INTRODUCTION

The rotationally resilient, failsafe claw coupling TSCHAN TNB 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 buffers 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

The elastic TSCHAN TNB buffers are made of butadiene-nitril-rubber (Pb82) or polyurethane (VkR, VkW). The black buffer (Pb82) are normally electrically conductive and therefore prevent undesirable electrostatic charges. The red (VkR) and white (VkW) buffers ensure electrical insulation between connected machines as long as there are no other electrically conductive connections. 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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