Bellows shaft coupling

Key product advantages are

  • Backlash free operation
  • Torque range : 18 to 5000 Nm
  • Torsionally stiff
  • Maintenance free
  • To suit shaft sizes from 1mm to 100mm (H7)
  • Suitable for high temperatures from -30C to +120C
  • Corrosion resistant

Metal bellows shaft couplings deliver, high torsional rigidity, due to the bellows’ radial rigidity, and low side thrust due to the bellows’ lateral flexibility. Other coupling types have either low windup or low side thrust, but not both.

Precision motion control applications require mechanically tight systems, especially between motors, driven loads, and feedback devices, to ensure accurate positioning. Such systems often require shaft couplings that are both torsionally rigid, to accurately transmit rotational position and laterally flexible to accommodate shaft misalignment.

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Bellows shaft coupling Image

Bellows shaft couplings - Basic model sizes

Model type Outside diameter (mm) Total Length (mm) Options Available Bore Sizes (mm)
HMB 10 23 1mm to 4mm
HMB 15  19,21,23,25,27,29 3mm to 8mm
HMB 19 26,30 3mm to 12mm
HMB 24 22,28,32 3mm to 14mm
HMB 32 40,48 6mm to 18mm
HMB 40 45,55 6mm to 24mm
HMB 45 63,71 10mm to 25.4mm
HMB 56 53,61,65,73 10mm to 30mm
HMB 66 62,73,79,89 12mm to 32mm
HMB 82 79,90,91,102 14mm to 42mm
HMB 90 78,91,101,103 22mm to 45mm
HMB 110 90,102,105,106 30mm to 60mm
HMB 122 101,112,123 35mm to 65mm
HMB 157 168,170,206 40mm to 80mm
HMB 208 206 50mm to 80mm

Other sizes on request . Some sizes are directly interchangeable with more expensive alternatives from well known brands.


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