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HRC Elastic Couplings

HRC are torsionally flexible, puncture-proof shaft couplings with two metal hubs with front claws and a rubber element. They transmit torque through pressure-stressed elastic star-shaped buffer which absorbs shock and torsional vibration. This element is oil resistant and electrically conductive. HRC coupling hubs are made of grey cast iron as unbored, with a pilot bore or for fixing with Taper Lock bushes.

HRC couplings can be used for both directions of rotation and each mounting position.

HRC Elastic Couplings Hubs - Preview


HRC coupling components of various sizes
Types: E, I and Unbored
HRC Couplings Elastic Elements - Preview

Elastic Elements

HRC coupling components of various sizes

Couplings Construction

HRC Coupling Construction

  1. Hubs
  2. Buffer

Couplings Fields of Use

HRC flexible couplings are designed for the highest requirements in a wide range of industries, especially for compressors, pumps, conveyors, construction machinery and many other machines. They are available in two-piece cast iron design.

Couplings Characteristics

  • Alignment of radial, axial and angular misalignment of shafts
  • Parallel misalignment up to 0.5 mm, axial misalignment up to 1.7 mm
  • Use for a temperature range from −40 °C to +100 °C
  • High speed capability, cost effective solution
  • Simple assembly without the need to modify the bore (applies to versions with Taper Lock bushings)

Documents for Download

Dimensions and Parameters of HRC Elastic Couplings - Preview

Dimensions and Parameters of HRC Elastic Couplings

TYMA CZ Data Sheets

Czech and English (PDF 494.92 kB)

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We also provide design and calculation of transmission components, including shaft couplings. In the case of your interest in this service, use the detailed Transmission Drive Design Form.