Thanks to its compact design, the Metal Bellows Coupling model 'DKN' is perfectly qualified for backlash-free connections in confined spaces. It is mounted on driver and driven components by means of clamping hubs. High-quality build and material guarantee for maximum durability.

GWB DKN

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CAD
Size
L
mm
d1min
mm
d1max
mm
D1
mm
H
mm
T
Nm
nmax
1/min
ΔKa
mm
ΔKw
Grad
ΔKr
mm
TA1
Nm
4 21 3 8 16 18 0,5 15000 0,2 1,2 0,10 0,3
4 24 3 8 16 18 0,5 15000 0,3 2,0 0,15 0,3
4 28 3 8 16 18 0,5 15000 0,4 2,0 0,20 0,3
9 23 3 8 16 18 1,1 15000 0,2 1,2 0,10 0,3
9 26 3 8 16 18 1,1 15000 0,3 2,0 0,15 0,3
9 30 3 8 16 18 1,1 15000 0,4 2,0 0,20 0,3
15 26 3 10 20 21 1,75 15000 0,25 1,2 0,10 0,8
15 30 3 10 20 21 1,75 15000 0,4 2,0 0,15 0,8
20 32 3 14 25 27 2,4 15000 0,3 1,2 0,10 1,5
20 38 3 14 25 27 2,4 15000 0,4 2,0 0,20 1,5
20 42 3 14 25 27 2,4 15000 0,5 2,0 0,25 1,5
45 41 5 17 33 34 5,5 15000 0,3 1,2 0,10 3
45 50 5 17 33 34 5,5 15000 0,5 2,0 0,20 3
100 47 5 24 40 42 12 15000 0,4 1,2 0,15 3
100 57 5 24 40 42 12 15000 0,5 2,0 0,25 3
CAD Size
L
inch
d1min
inch
d1max
inch
D1
inch
H
inch
T
ft-lbs
nmax
rpm
ΔKa
inch
ΔKw
degree
ΔKr
inch
TA1
ft-lbs
  4 0.827 0.118 0.315 0.630 0.709 0.4 15000 0.008 1.2 0.004 0.2
  4 0.945 0.118 0.315 0.630 0.709 0.4 15000 0.012 2.0 0.006 0.2
  4 1.102 0.118 0.315 0.630 0.709 0.4 15000 0.016 2.0 0.008 0.2
  9 0.906 0.118 0.315 0.630 0.709 0.8 15000 0.008 1.2 0.004 0.2
  9 1.024 0.118 0.315 0.630 0.709 0.8 15000 0.012 2.0 0.006 0.2
  9 1.181 0.118 0.315 0.630 0.709 0.8 15000 0.016 2.0 0.008 0.2
  15 1.024 0.118 0.394 0.787 0.827 1.3 15000 0.010 1.2 0.004 0.6
  15 1.181 0.118 0.394 0.787 0.827 1.3 15000 0.016 2.0 0.006 0.6
  20 1.260 0.118 0.551 0.984 1.063 1.8 15000 0.012 1.2 0.004 1.1
  20 1.496 0.118 0.551 0.984 1.063 1.8 15000 0.016 2.0 0.008 1.1
  20 1.654 0.118 0.551 0.984 1.063 1.8 15000 0.020 2.0 0.010 1.1
  45 1.614 0.197 0.669 1.299 1.339 4.1 15000 0.012 1.2 0.004 2.2
  45 1.969 0.197 0.669 1.299 1.339 4.1 15000 0.020 2.0 0.008 2.2
  100 1.850 0.197 0.945 1.575 1.654 8.9 15000 0.016 1.2 0.006 2.2
  100 2.244 0.197 0.945 1.575 1.654 8.9 15000 0.020 2.0 0.010 2.2

Characteristics

  • 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 DKN

  • Miniature metal bellows coupling with clamping hubs

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

Downloads

Product Paper Metal Bellows Couplings RINGFEDER® GWB

Product Paper Metal Bellows Couplings RINGFEDER® GWB

Tech Paper Metal Bellows Couplings RINGFEDER® GWB DKN

Tech Paper Metal Bellows Couplings RINGFEDER® GWB DKN

Instruction Metal Bellows Couplings RINGFEDER® GWB

Instruction Metal Bellows Couplings RINGFEDER® GWB

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