Back-up Ring is Contoured Back-up Rings

3 Results
Kurv-Bak Seals
from Precision Associates Incorporated

PAI Kurv-Bak ™ hard rubber back-up rings can be made in a variety of materials to help prevent early seal failure at higher pressures. Back-up Rings are used for one of two purposes. Higher pressures may be sealed by using back-up rings with standard, or tightened, manufacturing tolerances. [See More]

  • Construction: Contoured Face
  • Shaft O.D. or Ring I.D.: 0.1090 to 22
  • Design Units: English
  • Radial X-section: 0.0625 to 0.2500
Anti-Extrusion Rings -- Solid Contoured Backup Style Ring
from Hi-Tech Seals, Inc.

The primary function of anti-extrusion rings is to take up space in a groove, and/or prevent extrusion of material at high pressures. Anti-extrusion rings can also be used to assist seals where exaggerated clearance gaps are an issue. The determining factors when selecting anti-extrusion ring... [See More]

  • Construction: Contoured Face
  • Sealing Element or Lip Material (ASTM Abbreviation): Fluoroelastomer (FKM) (optional feature) Nitrile (NBR) (optional feature) Polyetheretherketon (PEEK) (optional feature) Polytetrafluoroethylene (PTFE) (optional feature) Polyurethane (optional feature)
  • Design Units: Metric
Back-Up Rings - Type BU/BG
from Trelleborg Sealing Solutions Germany GmbH

Rectangular cross section. For static and dynamic use. Reciprocating and rotating movements possible. Material: PTFE. Back-up Rings are installed together with O-Rings and Quad-Ring ® Seals to prevent extrusion in applications above 5 MPa / 725 psi. Available in spiral, cut, or uncut designs in... [See More]

  • Construction: Contoured Face; Spiral Back-up Ring
  • Shaft O.D. or Ring I.D.: 0.3150 to 8.27
  • Design Units: Metric
  • Radial X-section: 0.1220 to 0.4843