Single lip grease seal

AO


Single lip grease seal

Premium general purpose springless grease seal with integrated metal reinforcement element for press-in fitment in an open housing.  Designed to control leakage in grease-packed bearings.

The springless lip imparts low friction and heat generation. The rubber-covered outer diameter creates excellent static sealing without excessive damage to soft alloys. This is an excellent low friction seal for non-pressurized media such as grease or highly viscous fluids.




Operating Range
MaterialContinuous PressureMax. Pressure SpikeTemperatureSurface Speed
Duralast 8838-LF3psi (0.2bar)7psi (0.5bar)-4 to 392°F (-20 to 200°C)Up to 7,000 fpm (35m/s)
Duralast 5117-LF3psi (0.2bar)7psi (0.5bar)-13 to 212°F (-25 to 100°C)Up to 2,600 fpm (13m/s)
Fluoroelastomer (FKM),Viton®3psi (0.2bar)7psi (0.5bar)-4 to 392°F (-20 to 200°C)Up to 6,000 fpm (30m/s)
Nitrile (NBR)3psi (0.2bar)7psi (0.5bar)-13 to 212°F (-25 to 100°C)Up to 2,400 fpm (12m/s)
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, including Functional Range.
A
Shaft Diameter
CS
Cross-section
D
Bore Diameter
LF
C
Chamfer
R1
Radius
Standard RangeFunctional RangeTolerance*D=ToleranceTol. +0.010/-0min.max.
0.200-0.599"0.200 - 5.000"+/-0.0033/16A + 0.375+/-.0010.2620.2100.0400.020
0.600-1.299"0.200 - 6.000"+/-0.0031/4A + 0.500+/-.0010.262
0.210
0.050
0.020
1.300 - 2.299"
0.200 - 7.000"
+/-0.003
5/16
A + 0.625
+/-.001
0.325
0.265
0.050
0.020
2.300 - 3.299"
0.250 - 10.000"
+/-0.003
3/8
A + 0.750
+/-.001
0.387
0.300
0.060
0.020
3.300 - 7.999"
0.500 - 15.000"
+/-0.004
1/2
A + 1.000
+/-.0015
0.512
0.425
0.090
0.030
8.000 - 15.999"1.000 - 63.000"+/-0.0053/4A + 1.500+/-.0020.6370.5300.1300.030
16.000 - 30.999"1.000 - 63.000"+/-0.0063/4A + 1.500+/-.0030.6370.5300.1500.030
31.000 - 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 8-16µin - Housing (D,L) Ra 32-63µin.
Shaft material hardness min. RC45. See Technical Info for more specific information.

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