Metal-cased Spring-loaded lip medium-pressure PTFE-Teflon® rotary shaft seal with wiper lip

MC22


Metal-cased Spring-loaded lip medium-pressure PTFE/Teflon® rotary shaft seal with wiper lip

The spring-loaded lip design allows the seal to accommodate low rpm shaft runout or coaxial misalignment up to 0.020″ and high surface speeds. The opposing lip facing the environment acts as a dust wiper for dirt exclusion and as a lubricant retainer. It is capable of handling extreme temperature, aggressive media, higher surface speeds, low to medium pressures, and can even run dry. Typical applications are gearboxes, mixers, and augers.




Operating Range
MaterialContinuous PressureMax.Pressure SpikeTemperatureSurface SpeedApplicationDry-runPV-Rating
Permachem 6233110psi (7.6bar)150psi (10bar)-58 to 400°F (-50 to 200°C)Up to 2,500 fpm (12.5m/s)standard oil lubrication, high waterbased fluidsYES5
Permachem 6235110psi (7.6bar)150psi (10bar)-58 to 400°F (-50 to 200°C)Up to 2,500 fpm (12.5m/s)Soft shaft material, gaseous media, FDA compliantYES5
Duraloy 4736110psi (7.6bar)150psi (10bar)-58 to 400°F (-50 to 200°C)Up to 2,500 fpm (12.5m/s)low wear and abrasion, long service lifeYES5
Size Table (Inch)Standard Range 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, including Functional Range.
A
Shaft Diameter
CS
Cross-section

D
Bore Diameter
B
without
wiper lip +/- 0.010
B with
wiper lip +/- 0.010
L
F
C
R
Standard Range
Functional Range
Tolerance
*D=
Tolerance
B=
B=
+0.012/-0
+/-0.010
min.
max.
0.315 - 0.999"
0.315 - 5.000"
+/-0.003
1/4
A + 0.500
+/-.001
A + 0.030
A + 0.120
0.262
0.223
0.070
0.020
1.000 - 5.999"
0.315 - 18.000"
+/-0.003
3/8
A + 0.750
+/-.001
A + 0.030
A + 0.120
0.300
0.255
0.085
0.020
6.000 - 15.999"
0.500 - 26.000"
+/-0.004
1/2
A + 1.000
+/-.002
A + 0.035
A + 0.120
0.375
0.310
0.090
0.030
16.000 - 25.999"
0.500 - 26.000"
+/-0.006
5/8
A + 1.250
+/-.003
A + 0.040
A + 0.1200.512
0.425
0.100
0.030
26.000 - 63.000"
consult with 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 6-12µin - Housing (D,L) Ra max.32µin - Shaft material hardness 55-65RC. Use of installation tool is highly recommended. See Technical Info for more specific information.

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