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Item description/product images

DescriptionProduct description:Self-centring U-rings are axially static sealing elements for use on screw joints, valves, flanges
and hydraulic applications, including simple alignment. They consist of a metal ring with a vulcanised-on, trapezoidal elastic sealing bead. When the fastener is tightened, the elastic sealing bead is compressed between the two flat surfaces. The thickness of the metal ring limits the maximum compression of the seal. When additional pressure is applied to the sealing point, the sealing bead is pressed further against the flat surfaces, thereby further enhancing the sealing effect.

U-rings are not suitable for use as thread locks.
Material:Version:Note:Flat, undamaged sealing faces are essential for a reliable seal. The maximum permissible surface roughness is Rmax ≤ 15 µm or Ra ≤ 3 µm. A seal can only be guaranteed to function securely and correctly if it is fitted carefully and professionally.Technical data:Process pressures:
≤ 100 MPa when fitted into a recess.
≤ 40 MPa when fitted without counterbore by ø < 40 mm.
≤ 25 MPa when fitted without counterbore by ø > 40 mm.
Temperature range:NBR: -30°C to +80°C.
EPDM: -40°C to +130°C.
On request:Further dimensions and materials.Special features:
RoHS
DownloadHere is all the information as a PDF datasheet:

Are you looking for CAD data? These can be found directly in the product table.
 Datasheet 23902-05 U-rings, steel or stainless steel, self-centring 129 kB

Drawings

U-rings, steel or stainless steel, self-centring

Item selection/filter

Order No.Main
material
Component
material
Surface finish
body
D

D1D2HShore gradeSteel keyfor
screw
CADAcc.PriceOrder
23902-05-04070451011stainless steelEPDMbright74,53,4170A1.4301M4on request
23902-05-04070451022steelnitrile rubbergalvanised74,53,4170A1.0330M4on request
23902-05-05090571011stainless steelEPDMbright95,74,5170A1.4301M5on request
23902-05-05090571022steelnitrile rubbergalvanised95,74,5170A1.0330M5on request
23902-05-06100671011stainless steelEPDMbright106,74,7170A1.4301M6on request
23902-05-06100671022steelnitrile rubbergalvanised106,74,7170A1.0330M6on request
23902-05-08130871011stainless steelEPDMbright138,76,4170A1.4301M8on request
23902-05-08130871022steelnitrile rubbergalvanised138,76,4170A1.0330M8on request
23902-05-10161071511stainless steelEPDMbright1610,78,051,570A1.4301M10on request
23902-05-10161071522steelnitrile rubbergalvanised1610,78,051,570A1.0330M10on request
23902-05-12181271511stainless steelEPDMbright1812,79,731,570A1.4301M12on request
23902-05-12181271522steelnitrile rubbergalvanised1812,79,731,570A1.0330M12on request
23902-05-16241671511stainless steelEPDMbright2416,713,411,570A1.4301M16on request
23902-05-16241671522steelnitrile rubbergalvanised2416,713,411,570A1.0330M16on request
23902-05-20282071511stainless steelEPDMbright2820,716,171,570A1.4301M20on request
23902-05-20282071522steelnitrile rubbergalvanised2820,716,171,570A1.0330M20on request
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