HKS(I) / HKDS(I) Safety Couplings
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Catalog excerpts

HKS(I) / HKDS(I) Safety Couplings For fail-safe encoder attachments operating under extreme conditions • Safety couplings with ATEX / IECEx • Fault exclusion (PL e) to IEC 61800-5-2 • Ex zones 1 & 2 (gas), 21 & 22 (dust) • FEM optimized construction • Spring washers made of high strength steel • Torsion resistant and backlash free • Longer encoder lifetime • No unplanned plant downtimes • Overload events do not affect availability • Calculated and exhaustively tested • Designed for extreme operating conditions • No failure due to corrosion • Optionally with insulation against shaft currents (not for Ex applications) Additional claws ensure availability Insulation made of glass-fiber rein- Reliable under changing dynamic even if spring washers fracture due forced plastic prevents shaft currents load stress cycles thanks to keyed damaging bearings on inverter con- shaft-hub connection. trolled drives. (Not for Ex applications.) More informatio

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Johannes Hübner  HKS(I) / HKDS(I) Safety Couplings Single joint couplings HKS(I) Double joint couplings HKDS(I) Compensates angular misalignments Compensates shaft misalignments Example 1: HKSI including insulation (optional: HKS without insulation) Example 2: HKDS without insulation (optional: HKDSI including insulation) Bore diameter (other diameters on request) Ø d1 [mm] (Drive side) and / or Ø d2 [mm] (Encoder side) insulated couplings (without ATEC / IECEx certification): Ø d2 (Encoder side) available from 10 mm to 14 mm Mechanical data Shock resistance Vibration resistance Temperature...

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