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TSCHAN® TNZ ZCAF / TNZ ZCBF

TNZ ZCAF: Double engagement design with an intermediate shaft to fulfill specific requirements in terms of torsion spring stiffnesses

The model TNZ ZCAF is composed from the coupling halves of the coupling TNZ ZCA and is complemented by an intermediate shaft and two rigid counter-flanges. If required, the torsional stiffness of the shaft can be tuned to the dynamic behavior of the drive line. In addition, the intermediate shaft, which serves to accommodate longer shaft separations, can be mounted and dismounted radially without having to move the connected machines.

TNZ ZCBF: Double engagement design with a bolt-on O-ring carrier for ease of installation, and an intermediate shaft to fulfill specific requirements in terms of torsion spring stiffnesses

The model TNZ ZCBF is composed from the coupling halves of the coupling TNZ ZCB and is complemented by an intermediate shaft and two rigid counter-flanges. If required, the torsional stiffness of the shaft can be tuned to the dynamic behavior of the drive line. In addition, the intermediate shaft, which serves to accommodate longer shaft separations, can be mounted and dismounted radially without having to move the connected machines.

TSCHAN® TNZ ZCAF / TNZ ZCBF

metric inch
CAD Size Identifier
ZCA
TKN nmax d3kmin d3kmax D1 D6 L L7min Gwsb
      Nm 1/min mm mm mm mm mm mm kg
  69 XC6106 1750 On request 12 55 111 81,5 179 86 Abhängig von / Depends on E
  85 XC6108 2750 On request 18 75 152 103,5 213 100 Abhängig von / Depends on E
  107 XC6110 5500 On request 28 95 178 127,5 271 124 Abhängig von / Depends on E
  133 XC6113 8500 On request 40 110 213 156 325 152 Abhängig von / Depends on E
  152 XC6115 13500 On request 50 130 240 181 403 180 Abhängig von / Depends on E
  179 XC6117 22000 On request 60 155 280 209 466 210 Abhängig von / Depends on E
  209 XC6120 35000 On request 70 180 318 245,5 530 240 Abhängig von / Depends on E
  234 XC6123 43000 On request 85 200 346 274 602 270 Abhängig von / Depends on E
  254 XC6125 68000 On request 95 230 389 307 700 300 Abhängig von / Depends on E
  279 XC6127 82000 On request 110 250 425 334,5 806 350 Abhängig von / Depends on E
  305 XC6130 150000 On request 120 280 457 366 880 380 Abhängig von / Depends on E
  355 XC6135 195000 On request 130 330 527 423 1040 440 Abhängig von / depends on E
CAD Size Identifier
ZCA
TKN nmax d3kmin d3kmax D1 D6 L L7min Gwsb
  ft-lbs rpm inch inch inch inch inch inch lbs
  69 XC6106 1291 On request 0.472 2.165 4.370 3.209 7.047 3.386 Abhängig von / Depends on E
  85 XC6108 2028 On request 0.709 2.953 5.984 4.075 8.386 3.937 Depends on E
  107 XC6110 4057 On request 1.102 3.740 7.008 5.020 10.669 4.882 Depends on E
  133 XC6113 6269 On request 1.575 4.331 8.386 6.142 12.795 5.984 Depends on E
  152 XC6115 9957 On request 1.969 5.118 9.449 7.126 15.866 7.087 Depends on E
  179 XC6117 16227 On request 2.362 6.102 11.024 8.228 18.346 8.268 Depends on E
  209 XC6120 25815 On request 2.756 7.087 12.520 9.665 20.866 9.449 Depends on E
  234 XC6123 31716 On request 3.346 7.874 13.622 10.787 23.701 10.630 Depends on E
  254 XC6125 50155 On request 3.740 9.055 15.315 12.087 27.559 11.811 Depends on E
  279 XC6127 60481 On request 4.331 9.843 16.732 13.169 31.732 13.780 Depends on E
  305 XC6130 110636 On request 4.724 11.024 17.992 14.409 34.646 14.961 Depends on E
  355 XC6135 143826 On request 5.118 12.992 20.748 16.654 40.945 17.323 Depends on E

General features

  • Torsionally rigid gear coupling made of high-quality steel
  • Very compact design results in a high-power density
  • Compensates for angular, radial and axial shaft offset
  • Suitable for use in temperatures up to +120 °C if special seals are used
  • Available with split sleeve (ZCA / ZCB - ZCA model range also available in ZCB design) and single-piece sleeve (ZCH)
  • The elastic O-ring can be replaced without having to move the coupled machines
  • Bores up to 270 mm
  • Torques up to TKn = 195,000 Nm / TKmax = 390,000 Nm
  • Speeds up to nmax = 6,000 rpm

General description

The TSCHAN® TNZ coupling is a torsionally rigid twin cardanic gear coupling.

Toothing

The coupling housings have a straight internal toothing whilst the hubs have an external toothing with a chased variable radius. As a result, the hubs can move spatially within the housing and thus compensate angular, radial and axial shaft misalignment of the adjoined shaft ends within specified tolerances. Depending on coupling type and size, the standard toothing permits an angular misalignment of up to 0.5 degrees per toothing-plane and an axial movement of several millimetres. The max. possible radial shaft displacement is dependent on the distance between the two toothing planes. Other toothing geometries can be used for further specific applications.

Materials

High-grade tooth profiles and grease with ultra high-pressure additives guarantee low-restoring forces and a long serviceable life. The material used is forged steel with an apparent yielding point of at least 335 N/mm2. Special materials can be used for further specific applications. Sealing is carried out using O-rings and lip-seals of buna N. The housings are centred and held together by fit-bolts and self-locking nuts.

Temperature

The use of special seals permits the temperature limit to be raised to 120 °C.

Balance

At peripheral speeds upwards of 30 m/s it is advisable to dynamically balance the coupling.

Special applications

If greater misalignments are anticipated at higher speeds and torques, an examination is necessary, performed with the assistance of a special computing programme. This is independent of the determined size. The value TKmax may not be exceeded in any state of operation (start-up, electrical short circuit, blocking, etc.).

Tolerances and standards

The bore tolerance is ISO H7, if not differently ordered. The bore diameters listed refer to keyways to DIN 6885-1.

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