Designed to replace PTFE tape, the clip-type guide rings are fitted in valves, actuators and lifting components in armatures, food and drinks industry as well as chemical and medical technology among other applications.
The ‘iglidur’ piston rings are suitable for linear, rotary, lifting or pivoting movements as igus piston rings are lubrication-free, wear-resistant, have a defined clearance and are dimensionally stable even with edge loads.
The quick-fitting design is a key advantage in the polymer piston rings. The ready-to-fit piston rings are fitted in a single movement into an undercut machined in a bore or a groove of a shaft. The ‘iglidur’ piston rings are positioned, clipped and then snapped into place.
PTFE tapes, on the other hand have to be punched or cut from raw material in a time-consuming process, then inserted manually in a groove before the piston is slipped into the bore of the assembly.
Additionally, the straightforward handling of the piston rings reduces potential sources of faults such as deformation and fitting errors.
Lubrication-free piston rings made of the tribo-optimised universal material ‘iglidur J’ are now available ex-stock in 13 dimensions for shaft diameters from 10mm to 70mm.