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GERWAH® Torsionally Rigid Disc Couplings with keyless clamp style hub design, Series CHC

Clamping Hub Coupling with short spacer

Multiple-disc coupling for compensating of axial, angular and radial (CHD and CHC) misalignments

GERWAH® CHC

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 25 70,5 47 110,2 39,5 180 8 8400 1,1 1,5 0,3
  32 35 88 62,5 127,6 45 360 14 6800 1,2 1,5 0,4
  75 45 116,5 81 156,3 55 790 31 5400 1,6 1,5 0,5
  135 60 140,5 94 175 60 1450 62 4600 2,1 1,5 0,7
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 0.98 2.78 1.85 4.34 1.56 133 6 8400 0.04 1.5 0.012
  32 1.38 3.46 2.46 5.02 1.77 265 10 6800 0.05 1.5 0.016
  75 1.77 4.59 3.19 6.15 2.17 582 23 5400 0.06 1.5 0.020
  135 2.36 5.53 3.7 6.89 2.36 1069 46 4600 0.08 1.5 0.028

GERWAH® CCS, CCD, CHS, CHD and CHC: 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 Clamping Hub
    GERWAH® CCS, CCD

    Coupling with axial, angular and parallel (CCD) misalignment capability

    • Low inertia, high speeds
    • Minimized dimensions
    • Can be used up to temperatures of approx. 240 °C/460 °F
    • Maintenance-free operation

    Characteristics
    Mounting with Clamping Hub
    GERWAH® CHS, CHD, CHC

    Coupling for compensating of axial, angular and radial (CHD and CHC) misalignments

    • Permanently backlash-free attachment of the disc coupling by means of clamping hub
    • Overall length adaptable to customer requirements through the use of different spacer sleeves (CHD) or very short length with close coupled sleeve (CHC)
    • High torsional stiffness
    • Backlash-free transmission of high torques
    • Can be used up to temperatures of approx. 240 °C/460 °F
    • Maintenance-free operation

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

    GERWAH® CHC

    • Clamping Hub Coupling with short spacer

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