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ATTN: CANADA CUSTOMERS: If you need to buy seals from us, please call us instead of ordering online to arrange for shipping. As we can not use USPS to ship your package until the strike ends. Thank you!
S11109-309
UPC: 33363093
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