Steel Disc Couplings TND HSH | RINGFEDER®

Standard Hubs, Single-Jointed, without Spacer, Shaft-Hub Connection by Keyway according to DIN 6885-1

  • 11 Sizes
  • Max. Bore Diameter d: 32-215 mm (1.259-8.465 inch)
  • Max. Outer Diameter D1: 70.5-510 mm (2.776-20.078 inch)
  • Hub Distance E: 7.5-47 mm (0.295-1.850 inch)
  • Overall Length L: 86.5-527 mm (3.406-20.748 inch)
  • Rot. Speed nmax: 1,700-12,200 1/min
  • Torque TKN: 170-130,000 Nm (125.36-95,833.07 ft·lb)

Product Characteristics

Your Benefits

The type RINGFEDER® TND HSH is a torsionally stiff, backlash-free steel disc coupling consisting of two standard hubs H and a disc pack S alternately connected to the hubs by high-strength screws.

Depending on the coupling size, two different disc packs are available:

  • Type HD (= High Deflection) for increased compensation capability at occurring shaft misalignments.
  • Type HT (= High Torque) with larger power density for higher requirements on transmissible torque.

The single-jointed design with single disc pack compensates for angular and axial shaft misalignments.

 

Steel disc couplings of the RINGFEDER® TND HSH type are particularly convincing due to the following features:

  • Completely backlash- and maintenance-free
  • Highly effective compensation of angular and axial shaft misalignment
  • Torsionally rigid with high torsional stiffness
  • Low restoring forces in case of shaft misalignment due to optimum disc pack design
  • Quick and easy realization of a double-cardanic setup by means of two couplings and one spacer
  • Bore diameter d1/2 up to 215 mm (8.465 inch)
  • Transmissible torque TKN up to 130,000 Nm (95,833.07 ft·lb) / Tkmax up to 220,000 Nm (162,263.67 ft·lb)
  • Rotational speeds nmax up to 12,200 1/min
  • Efficient realization of customer-specific solutions at short delivery times thanks to modular design

 

ATEX Compliance

For maximum safety in explosion-endangered areas, RINGFEDER® Steel Disc Couplings can of course be supplied in compliance with ATEX according to Product Directive 2014/34/EU and DIN EN ISO 80079-36:2016 if required.

 

Main Areas of Use

  • Pumps
  • Fans
  • Compressors
  • Generator and Turbine Drives
  • Axial and Radial Blowers
  • Paper and Printing Machines
  • Mixers and Stirrers
  • Extruders
  • Lifting and Traversing Gears
  • Marine Drives
  • Water Screw Drives

 

Technical Information

  • Without further specifications, we deliver as standard: Bore tolerance H7; Keyway acc. to DIN 6885-1; Keyway width tolerance P9; Set screw per hub.
  • From a peripheral speed of 30 m/s, separate balancing of the individual coupling parts is recommended.
  • Without further instructions on balancing, the coupling parts are balanced individually according to DIN 21940-11 in quality G 6,3 at 1,500 1/min. The hubs are balanced half key (before grooving).
  • Screwing of disc packs via hexagon socket screws (coupling size 47-141), hexagon head screws (coupling size 169-254) or hexagon head screws with special nut (coupling size 262-316).

Moreover, please observe the detailed selection and operating criteria in the documents Product Paper Steel Disc Couplings RINGFEDER® TND and Tech Paper Steel Disc Couplings RINGFEDER® TND HSH.

Steel Disc Couplings TND: High-Quality Disc Packs | RINGFEDER®

High-Quality Disc Packs

The characteristic and functional key element of the powerful steel disc couplings of the RINGFEDER® TND series are disc packs developed on the basis of in-depth FEM analysis. They consist of multiple circular, torsionally flexible single discs made of stainless spring steel which are connected by means of high-precision sleeves to form a compact unit. High-strength screws alternately connect the disc packs, if necessary via mounted spacers, to the coupling hubs, so that the required torque is transmitted reliably, precisely and safely by the steel discs which are loaded by tension and compression. At the same time, this ensures the desired compensation capability for angular, axial and, depending on the coupling type, also radial shaft misalignments at minimum restoring forces.

Technical Data & CAD Models

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CAD
Größe/Size
TKN HD
Nm
TKN HT
Nm
nmax
1/min
dpre
mm
d1kmax
mm
d2kmax
mm
C1
mm
C2
mm
E
mm
H3
mm

D1


mm
D2
mm
L2
mm
L
mm
SD
mm
nSc
Stück
Gwsb
kg
Jsb
10-3kgm2
CTdynHD
106Nm/rad
CTdynHT
106Nm/rad
ΔKaHD
mm
ΔKaHT 
mm
ΔKwHD
°
ΔKwHT
°
ΔKrHD
mm
ΔKrHT
mm
47 170 230 12200 10 32 32 39,5 39,5 7,5 7,5 70,5 47 5 86,5 24 6 1,3 0,5 0,173 0,184 0,5 0,3 1 0,7 - -
63 320 420 9900 14 42 42 45 45 9 9 88 62,5 8 99 32 6 2,6 1,6 0,281 0,312 0,5 0,4 1 0,7
82 750 1050 7500 15 55 55 55 55 10,5 10,5 116 82 10 120,5 40 6 5,6 5,9 0,637 0,743 0,7 0,4 1 0,7 - -
98 1350 1750 6200 19 65 65 60 60 12 12 140,5 98 11 132 47 6 8,8 14 1,173 1,251 1 0,6 1 0,7 - -
118 2400 3000 5250 25 85 85 75 75 13 13 166,5 118 12 163 55 6 15,4 35 2 2,082 1,2 0,8 1 0,7 - -
141 4000 5200 4400 30 95 95 90 90 15 15 198,5 141 14 195 64 6 25,9 84 2,992 3,142 1,4 0,8 1 0,7 - -
169 6500 8500 3650 39 115 115 125 125 21 21 238 169 16 271 81 6 50 230 5,269 6,586 1,5 1,2 1 0,7 - -
205 21000 26000 2950 59 140 140 160 160 28 28 295 205 22 348 112 8 97,8 700 21,848 22,285 1,1 0,6 0,5 0,4 - -
254 36000 44000 2500 79 175 175 200 200 32,5 32,5 345 254 26 432,5 133 8 171,2 1750 37,204 37,868 1,1 0,8 0,5 0,4 - -
262 74000 - 2050 90 180 180 210 210 34 34 420 262 32 454 137 8 223,2 3260 46,192 - 1,6 - 0,5 - - -
316 130000 - 1700 100 215 215 240 240 47 47 510 316 38 527 172 8 384,4 8650 87,706 - 1,8 - 0,5 - - -
CAD Größe/Size
TKN HD
ft-lbs
TKN HT
ft-lbs
nmax
rpm
dpre
inch
d1kmax
inch
d2kmax
inch
C1
inch
C2
inch
E
inch
H3
inch

D1


inch
D2
inch
L2
inch
L
inch
SD
inch
nSc
pcs.
Gwsb
lbs
Jsb
lbs-in2
CTdynHD
106ft-lbs/rad
CTdynHT
106ft-lbs/rad
ΔKaHD
inch
ΔKaHT 
inch
ΔKwHD
°
ΔKwHT
°
ΔKrHD
inch
ΔKrHT
inch
  47 125.387 169.641 12200 0.394 1.260 1.260 1.555 1.555 0.295 0.300 2.780 1.850 0.197 3.406 0.945 6 2.866 1.709 0.128 0.136 0.020 0.012 0.039 0.028 - -
  63 236.022 309.779 9900 0.551 1.654 1.654 1.772 1.772 0.354 0.354 3.460 2.461 0.315 3.898 1.260 6 5.732 5.467 0.207 0.230 0.020 0.016 0.039 0.028
  82 553.178 774.449 7500 0.591 2.165 2.165 2.165 2.165 0.413 0.413 4.567 3.228 0.394 4.744 1.575 6 12.346 20.160 0.470 0.548 0.028 0.016 0.039 0.028 - -
  98 995.720 1290.748 6200 0.748 2.559 2.559 2.362 2.362 0.472 0.470 5.530 3.858 0.433 5.197 1.850 6 19.401 47.838 0.865 0.923 0.039 0.024 0.039 0.028 - -
  118 1770.168 2212.710 5250 0.984 3.346 3.346 2.953 2.953 0.512 0.510 6.560 4.646 0.472 6.417 2.165 6 33.951 119.595 1.475 1.536 0.047 0.031 0.039 0.028 - -
  141 2950.280 3835.364 4400 1.181 3.740 3.740 3.543 3.543 0.591 0.590 7.810 5.551 0.551 7.677 2.520 6 57.100 287.028 2.207 2.318 0.055 0.031 0.039 0.028 - -
  169 4794.205 6269.345 3650 1.535 4.528 4.528 4.921 4.921 0.827 0.827 9.370 6.654 0.630 10.669 3.189 6 110.231 785.910 3.887 4.858 0.059 0.047 0.039 0.028 - -
  205 15488.970 19176.820 2950 2.323 5.512 5.512 6.299 6.299 1.102 1.100 11.610 8.071 0.866 13.701 4.409 8 215.612 2391.900 16.116 16.438 0.043 0.024 0.020 0.016 - -
  254 26552.520 32453.080 2500 3.110 6.890 6.890 7.874 7.874 1.280 1.280 13.580 10.000 1.024 17.028 5.236 8 377.432 5979.750 27.443 27.933 0.043 0.031 0.020 0.016 - -
  262 54580.180 - 2050 3.543 7.087 7.087 8.268 8.268 1.339 1.339 16.535 10.315 1.260 17.874 5.394 8 492.072 11139.420 34.073 - 0.063 -0.000 0.020 -0.000 - -
  316 95884.100 1700 3.937 8.465 8.465 9.449 9.449 1.850 1.850 20.079 12.441 1.496 20.748 6.772 8 847.458 29557.050 64.695 0.071 -0.000 0.020 -0.000 - -

360° Product View

Tap and rotate the XR Model below and experience RINGFEDER® TND HSH in an interactive, touch-enabled 360° Product View. To access full-screen mode on your laptop or desktop device, simply double-click on the product.

Steel Disc Couplings TND: Smart Modular System for Maximum Flexibility | RINGFEDER®

Smart Modular System

Thanks to the unitized design of the RINGFEDER® TND series and the accompanying highly flexible modular system, consisting of several disc pack and hub types, mounting options as well as spacer variants and lengths, there is always one coupling version available that is optimally suited for your individual application. Furthermore, customized special solutions can also be realized at short delivery times in specific case of need. For example, in addition to other hub combinations and the replacement of hubs by connecting flanges, functional supplements like brake disks or drums as well as anti-flail devices are also possible.

Downloads

Product Paper Steel Disc Couplings RINGFEDER® TND

Product Paper Steel Disc Couplings RINGFEDER® TND

Tech Paper Steel Disc Couplings RINGFEDER® TND HSH

Tech Paper Steel Disc Couplings RINGFEDER® TND HSH

RINGFEDER® Product Guide

RINGFEDER® Product Guide

Further downloads including certificates, instruction manuals and product images are available to you in our Download Center:

Downloads

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Steel Disc Couplings TND: Ideal for test benches, compressors and pumps, printing and packaging machines ventilation and fan systems or other industrial application areas | RINGFEDER®