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

Clamping Hub Coupling with standard spacer

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

GERWAH® CHD

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 47 139 39,5 180 8 8400 1,1 2 0,7
  32 35 88 62,5 160 45 360 14 6800 1,2 2 0,8
  75 45 116,5 81 210 55 790 31 5400 1,6 2 1,2
  135 60 140,5 94 220 60 1450 62 4600 2,1 2 1,1
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 5.47 1.56 133 6 8400 0.04 2 0.028
  32 1.38 3.46 2.46 6.3 1.77 265 10 6800 0.047 2 0.032
  75 1.77 4.59 3.19 8.27 2.17 582 23 5400 0.06 2 0.047
  135 2.36 5.53 3.7 8.66 2.36 1069 46 4600 0.08 2 0.043

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® CHD

    • Clamping Hub Coupling with standard spacer

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