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S11109-009
UPC: 29791791
PTFE Spiral Back-up ring
- Rectangular cross section
- Material: PTFE
- Cut angle of 30° or 45°
- Consists of standard two spiral windings which are cut at the
ends at an angle
- Static and dynamic use
- For reciprocating movements only
- Preferred for installations in a closed groove where uncut
Back-up Ring are not suitable
- Compensation of large temperature changes and tolerances
through a screw-like elongation and contraction. Easy
installation in closed grooves for external sealing applications
- The dimensions are different compared to standard Back-up
Rings
- Recommended only if service diameter does not exceed 40
times the radial groove depth