In-line type 400 RPM 1/2" SAE M/F. Rotary Couplings - In-Line Type Configuration.

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Holmbury’s GG Series Rotary Couplings are used to protect hydraulic lines that are subjected to torsional forces or rotational motion.


  • Available in both in-line and 90° configurations.
  • Can rotate at maximum pressure with low torque.

High quality construction. The spindle is carried on a roller bearing and has a low friction shaft seal. Zinc plated, hardened steel body. Choice of BSP, NPT, or SAE port threads. Optional chrome plated body, metric threads and Viton seals available.