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GERWAH® Torsionally Rigid Disc Couplings Mounting with RINGFEDER® Locking Assembly, Series LHD

Coupling with standard spacer

Permanently backlash-free attachment of the multiple-disc coupling by means of RINGFEDER Locking Assemblies

GERWAH® LHD

metric inch
CAD Size d1min d1max A L1 Tmax1) TL nmax ΔKa ΔKw ΔKr TA
    mm mm mm mm Nm Nm 1/min mm Grad mm Nm
  17-20 11 20 70,5 110 145 8 8400 1,1 1,5 0,7 5
  17-30 19 30 70,5 126 330 8 8400 1,1 1,5 0,7 17
  32-30 19 30 88 159 500 14 6800 1,2 1,5 0,8 17
  32-42 24 42 88 159 920 14 6800 1,2 1,5 0,8 17
  75-50 32 50 116,5 170 1140 31 5400 1,6 1,5 1,2 17
  75-60 55 60 116,5 188 1370 31 5400 1,6 1,5 1,2 17
  135-42 24 42 140,5 191 750 62 4600 2,1 1,5 1,1 17
  135-60 28 60 140,5 219 2820 62 4600 2,1 1,5 1,1 41
  240-60 28 60 166,5 219 2820 110 3800 2,5 1,5 1,1 41
  400-60 28 60 198,5 259 2820 180 3400 2,8 1,5 1,6 41
CAD Size d1min d1max A L1 Tmax1) TL nmax ΔKa ΔKw ΔKr TA
  inch inch inch inch ft-lbs ft-lbs rpm inch degree inch ft-lbs
  17-20 0.43 0.79 2.78 4.33 107 6 8400 0.04 1.5 0.03 4
  17-30 0.75 1.18 2.78 4.96 243 6 8400 0.04 1.5 0.03 13
  32-30 0.75 1.18 3.46 6.26 369 10 6800 0.05 1.5 0.030 13
  32-42 0.94 1.65 3.46 6.26 679 10 6800 0.05 1.5 0.03 13
  75-50 1.26 1.97 4.59 6.69 841 23 5400 0.06 1.5 0.05 13
  75-60 2.17 2.36 4.59 7.40 1010 23 5400 0.06 1.5 0.05 13
  135-42 0.94 1.65 5.53 7.52 553 46 4600 0.08 1.5 0.04 13
  135-60 1.10 2.36 5.53 8.62 2080 46 4600 0.08 1.5 0.04 30
  240-60 1.10 2.362 6.56 8.62 2080 81 3800 0.10 1.5 0.04 30
  400-60 1.10 2.36 7.81 10.2 2080 133 3400 0.11 1.5 0.06 30

GERWAH® LHS, LHD and LHC: 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 RINGFEDER® Locking Assembly GERWAH® LHS, LHD, LHC

    Permanently backlash-free attachment of the multiple-disc coupling by means of RINGFEDER Locking Assemblies

    • Multiple-disc coupling for compensating of axial and angular misalignments. Versions with 2 disc packs can also be used to compensate for radial misalignments.
    • Overall length adaptable to customer requirements through the use of various distance pieces
    • High torsional stiffness
    • High transmissible 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.

    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® LHD

    • Coupling with standard spacer

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