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Floating piston for mountain bike seat post actuator

The floating piston from SKF for pneumatic mountain bike seat post actuators replaces conventional multiple component solutions with a single-part customized seal.

Product Application expandexpanded


  • Symmetrical single part design for reliable sealing
  • High performance low temperature polyurethane rubber compound
  • Dynamic lip shapes for minimum friction and optimum system responsiveness


  • Simplified handling, installation and maintenance
  • Significantly improved sealing performance
  • Extended service life
  • Possibility to tailor designs to fit different applications
  • Minimized friction to enhance seat post responsiveness
  • One-part solution facilitates logistic efforts

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