Small cross-section low-friction internal swivel seal

R68R


Small cross-section low-friction internal swivel seal

Composite seal for sealing rod of swivel joints and rotary couplings.

This seal is designed to retrofit O-ring glands, to minimize system friction, and to provide a positive seal on the rod.  It is used where radial grooves must be kept as small as possible.  Up to 3,500*psi.  Small quantities are available in 1 to 3 days.




Operating Range
MaterialMax.PressureTemperatureSurface SpeedApplicationDry-runPV-Rating
Permachem 62333,500psi (240bar)-58 to 400°F (-50 to 200°C)Up to 400 fpm (2m/s)standard oil lubrication, high waterbased fluidsYES7
Permachem 62353,500psi (240bar)-58 to 400°F (-50 to 200°C)Up to 400 fpm (2m/s)Soft shaft material, gaseous media, FDA compliantYES7
Duraloy 47363,500psi (240bar)-58 to 400°F (-50 to 200°C)Up to 400 fpm (2m/s)low wear and abrasion, long service lifeYES7
Size Table (Inch)Standard sizes listed below are preferred sizes for new design applications; however, we offer any other seal size as required.Seals are available for any shaft diameter size in 0.001 inch increments without tooling charges, including Functional Range.
A
Shaft Diameter
CS
Cross-section
D
Bore
Diameter
B
Diameter
Tolerance
L
designed for
no back-up
ring groove
L
designed
for 1back-up
ring groove
L
designed
for 2 back-
up rings
groove
C
R1
Radius
R
Radius
Standard RangeFunctional RangeTolerance*D=B=D, BTolerances +0.005/-0
min.max.max.
0.120-0.499"
0.120 - 3.000"
+0/-0.0015
0.065
A + 0.130
A + 0.002
+0.001/-0
0.090
0.140
0.205
0.040
0.005
0.005
0.500-0.999"0.200 - 4.000"+0/-0.0020.098A + 0.196A + 0.002+0.002/-00.1400.1700.2400.0600.0100.005
1.000 - 1.499"0.750 - 6.000"+0/-0.00250.139A + 0.278A + 0.003+0.002/-00.1900.2100.2750.0800.0200.005
1.500 - 4.999"1.500 - 10.000"+0/-0.00350.203A + 0.406A + 0.004+0.003/-00.2800.3100.4100.0900.0250.005
5.000 - 25.999"4.500 - 26.000"+0/-0.0050.287A + 0.574A + 0.005+0.004/-00.3800.410
0.5400.1300.0350.005
≥26.000" consult AHPSeals engineering
*Standard cross-sections (CS) listed and non-standard sizes can be provided for any shaft size up to 63 inches. Surface finish: Shaft (A) plunge ground, zero lead, Ra 8-16µin using elastomer seals, Ra 6-12µin using PTFE seals. Housing (D,L) Ra 32-63µin, shaft material hardness 55-65RC. See Technical Info for more specific information.

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Seal Housing Drawing