Double-acting Turcon® Roto Glyd Ring® is used to seal shafts, axles, cylinder bores, rotary manifolds, and swivels with rotary, helical or oscillating movement. It consists of a seal ring in high-grade PTFE material activated by an elastomeric O-Ring. The contact surface profile of the seal ring is specially designed for use at high-pressure and low sliding speeds. Available in Turcon® or Zurcon® materials. The O-Ring is not included with this item.