Single-lip high-performance rotary shaft seal

ARB


Single-lip high-performance rotary shaft seal

Premium spring-loaded single-lip rotary shaft seal with PTFE bonded to the sealing lip.

Optimized seal lip design uses a garter spring to maintain a constant radial lip load, ensuring optimum sealability. The low friction sealing contact area creates lower torque and reduces both seal and shaft wear.  The rubber covered OD press fits to create a positive seal with the housing bore and, provides optimal compensation for housings of different thermal expansion, reducing the risk of fretting corrosion in soft alloy or plastic housings.  A higher surface roughness of the housing bore is possible with this seal style.  For dirty, dusty or polluted environments, use ASRB style with additional dust lip.




Operating Range
MaterialContinuous PressureMax. Pressure SpikeTemperatureSurface SpeedDry-run
PV-Rating
Fluoroelastomer (FKM), Viton®/PTFE60psi (4.1bar)100psi (6.9bar)-40 to 400°F (-40 to 200°C)Up to 7,000 fpm (35m/s)YES5
NBR/PTFE60psi (4.1bar)100psi (6.9bar)-40 to 230°F (-40 to 110°C)Up to 3,500 fpm (17.5m/s)YES4
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
L F
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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