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Metal Bellows Coupling AKN-H

The AKN-H combines the advantage of the AKN Metal Bellows Coupling with an easy installation. The clamping hubs in split hub design can be mounted lateral at the aligned shaft extensions.

GERWAH® AKN/H

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metric inch
CAD Size L d1min d1max H T nmax ΔKa ΔKw ΔKr DG1 TA1
    mm mm mm mm Nm 1/min mm Grad mm mm Nm
  18 63 8 26 48 22 12700 0,5 1,5 0,2 5 6
  30 65 10 30 56 36 10200 0,4 1,0 0,1 6 12
  60 78 12 35 67 75 8600 0,4 1,0 0,1 8 30
  80 90 14 42 84 95 6800 0,4 1,0 0,2 10 60
  150 90 14 42 84 180 6800 0,4 1,0 0,2 10 85
  200 99 22 46 93 240 6300 0,4 1,0 0,2 12 100
  300 104 24 60 110 360 5900 0,4 1,0 0,2 12 120
  500 111 35 64 122 600 4900 0,5 1,0 0,2 14 190
Size L d1min d1max H T nmax ΔKa ΔKw ΔKr DG1 TA1
inch inch inch inch ft-lbs rpm inch degree inch mm ft-lbs
18 2.480 0.315 1.024 1.85 16 12700 0.020 1.5 0.008 5 4.4
30 2.559 0.394 1.181 2.205 27 10200 0.016 1.0 0.004 6 9
60 3.071 0.472 1.378 2.638 55 8600 0.016 1.0 0.004 8 22
80 3.543 0.551 1.654 3.307 70 6800 0.016 1.0 0.008 10 44
150 3.543 0.551 1.654 3.307 133 6800 0.016 1.0 0.008 10 63
200 3.898 0.866 1.811 3.661 177 6300 0.016 1.0 0.008 12 74
300 4.094 0.945 2.362 4.331 266 5900 0.016 1.0 0.008 12 89
500 4.370 1.378 2.52 4.803 443 4900 0.020 1.0 0.008 14 140

Characteristics of Metal Bellows Couplings

  • Backlash-free transmission of torque
  • High torsional stiffness, precision of transmission of rotational angle
  • Different torsional stiffness
  • Compact design, low moment of inertia
  • Metal bellows made of stainless steel
  • Simple and safe assembly
  • Compensation of radial, axial and angular misalignment
  • Free of wear, maintenance-free, no downtimes
  • Not sensitive to temperatures between -30°C and +100°C
  • Nominal torques between 0,1 – 5000 Nm

Advantages

  • 100% inspection and traceability through individual marking
  • Higher torques at same dimensions
  • Compact design
  • Extended bore ranges
  • Customer-specific solutions
  • Higher safety in application, e.g. no wrong screw tightening torques

Backlash-free Metal Bellows Couplings are used in the sector of mechanical engineering, where a torque or a rotary motion has to be transmitted from shaft to shaft in highest accuracy of angle.


  • Pumps with axial and vertical drives
  • High dynamic portal drives
  • Spindle lifting units
  • Linear units
  • Packaging machines
  • Machine tools
  • Special machines

Series AKN-H


  • Metal bellows coupling with clamping hubs, short length and higher torsional stiffness in split hub design

Characteristics


  • Metal bellows made of stainless steel, hubs made of aluminum
  • The shaft tolerance should be within the fit tolerance “g6” or “h7”
  • The contact surfaces have to be free from oil and grease
  • Optional designs with keyway DIN 6885-1
  • Optional special design in stainless steel

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