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TSCHAN® TNB BHD-BS

Combination one-part/multi-part with VKR buffers - Like BHD, but with brake disk

The TSCHAN® TNB BHD-BS / BT 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 compression. 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. Buffers made of perbunan are electrically conductive. When the claw ring 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 BHD-BS

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metric inch
CAD Identifier A SB TKN TBR nmax d1f max d2f max D1 C1 C2 L
    mm mm Nm Nm 1/min mm mm mm mm mm mm
  WB0730-0630 630 30 6000 18000 2700 127 127 300 160 216 440
  WB0735-0710 710 30 10500 31500 2400 146,1 158,8 350 180 261 505
  WB0740-0800 800 30 16000 48000 2150 165,1 177,8 400 198 269 538
  WB0745-0800 800 30 21000 63000 2150 184,2 187 450 218 269 558
  WB0750-0900 900 30 35000 85500 1900 196,9 203,2 500 236,5 309 628,5
  WB0755-0900 900 30 45000 135000 1800 217,5 217,5 550 256,5 309 648,5
  WB0760-1000 1000 30 55000 165000 1650 228,6 232,5 600 258 329 675
  WB0765-1000 1000 30 65000 195000 1500 228,6 232,5 650 286,5 329 708,5
  WB0770-1200 1200 30 90000 270000 1400 263,6 271 700 327 375 804
  WB0780-1400 1400 30 120000 375000 1200 292,1 304,8 800 357 395 854
  WB0790-1500 1500 30 180000 540000 1100 330,2 366,9 900 407 429 944
Identifier A SB TKN TBR nmax d1f max d2f max D1 C1 C2 L
inch inch ft-lbs ft-lbs rpm inch inch inch inch inch inch
WB0730-0630 24.803 1.181 4425 13276 2700 5.000 5.000 11.811 6.299 8.504 17.323
WB0735-0710 27.953 1.181 7744 23233 2400 5.752 6.252 13.780 7.087 10.276 19.882
WB0740-0800 31.496 1.181 11801 35403 2150 6.500 7.000 15.748 7.795 10.591 21.181
WB0745-0800 31.496 1.181 15489 46467 2150 7.252 7.362 17.717 8.583 10.591 21.968
WB0750-0900 35.433 1.181 25815 63062 1900 7.752 8.000 19.685 9.311 12.165 24.744
WB0755-0900 35.433 1.181 33191 99572 1800 8.563 8.563 21.654 10.098 12.165 25.531
WB0760-1000 39.370 1.181 40566 121699 1650 9.000 9.154 23.622 10.157 12.953 26.575
WB0765-1000 39.370 1.181 47942 143826 1500 9.000 9.154 25.591 11.280 12.953 27.894
WB0770-1200 47.244 1.181 66381 199144 1400 10.378 10.669 27.559 12.874 14.764 31.653
WB0780-1400 55.118 1.181 88508 276589 1200 11.500 12.000 31.496 14.055 15.551 33.622
WB0790-1500 59.055 1.181 132763 398288 1100 13.000 14.445 35.433 16.024 16.890 37.165

TSCHAN®-TNB Type BHD-BS

Combination of a one-part design and a multi-part design coupling hub with brake disk and VkR buffer. Easy replacement of the elastic buffer without axial movement of the coupled machines.

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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