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GERWAH® Torsionally Rigid Disc Couplings with bore and keyway hub design, Series HC

Coupling with short spacer

Multiple-disc coupling for compensating of axial and angular misalignments

Versions with 2 disc packs can also be used to compensate for radial misalignments.

GERWAH® HC

metric inch
CAD Size d1max A D1 L1 L2 TKN TL nmax ΔKa ΔKw ΔKr
    mm mm mm mm mm Nm Nm 1/min mm Grad mm
  17 35 70,5 47 110,2 39,5 170 8 8400 1,1 2 0,3
  32 45 88 63 127,6 45 320 14 6800 1,2 2 0,4
  75 60 116 82 156,3 55 750 31 5400 1,6 2 0,5
  135 70 140,5 98 175 60 1350 62 4600 2,1 2 0,7
  240 90 166,5 118 212,6 75 2400 110 3800 2,5 2 0,8
  400 110 198,5 141 251,8 90 4000 180 3400 2,8 2 1,0
CAD Size d1max A D1 L1 L2 TKN TL nmax ΔKa ΔKw ΔKr
  inch inch inch inch inch ft-lbs ft-lbs rpm inch degree inch
  17 1.38 2.78 1.85 4.34 1.56 125 6 8400 0.04 2 0.012
  32 1.77 3.46 2.46 5.02 1.77 236 10 6800 0.05 2 0.016
  75 2.36 4.59 3.20 6.15 2.17 553 23 5400 0.06 2 0.020
  135 2.76 5.53 3.90 6.89 2.36 995 46 4600 0.08 2 0.027
  240 3.54 6.56 4.60 8.37 2.95 1769 81 3800 0.10 2 0.030
  400 4.30 7.81 5.60 9.91 3.54 2948 207 3400 0.11 2 0.040

GERWAH® HS, HD and HC: The advantages of the system

1. No tooth backlash

  • An important property for synchronous operation or for machines that are frequently used in start/stop or reverse operation. GERWAH® couplings are ideally suited to applications in which the positioning accuracy of the control system in both directions is important.
  • 2. Torsional stiffness

  • The design of the coupling guarantees a high level of torsional stiffness, which is an important property for applications in packaging machines, servomotors drives, printing presses and machine tools.
  • 3. High temperatures

  • GERWAH® couplings can be used under extreme temperature conditions up to 240 °C/460 °F, e.g. in high-temperature fluid pumps.
  • 4. High speeds

  • Due to the very strict production tolerances, GERWAH® allows precise vertical alignment and a high level of true running accuracy, making it ideal for applications involving high speeds even with irregular rotary forces.
  • 5. High service life

  • The highly accurate disc pack insures optimum force distribution, while its flexibility also protects against vibrations from the drive. GERWAH® couplings do not wear, so that a long service life is guaranteed
  • 6. Maintenance-free operation

  • GERWAH® couplings are maintenance-free and do not require greasing or cleaning
  • Characteristics
    Mounting with key GERWAH® HS, HD, HC

    Multiple-disc coupling for compensating of axial and angular misalignments.
    Versions with 2 disc packs can also be used to compensate for radial misalignments.

    • High torsional stiffness
    • High transmissible torques
    • Can be used up to temperatures of approx. 240 °C/460 °F
    • Maintenance-free operation
    • Attachment of the coupling to the shafts with keys

    Non-standard spacers
    Many applications for GERWAH® couplings require special spacer lengths and dimensions. We can supply spacers with lengths of up to 5m.

    Higher rotational speeds and/or special couplings
    A coupling sometimes needs to fulfil certain industrial safety standards or is operated at very high rotational speeds. We can also provide solutions for this.

    GERWAH® HC

    • Coupling with short spacer

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