Double-lip high-performance rotary shaft seal

ASRB


Double-lip high-performance rotary shaft seal

Premium spring-loaded double lip rotary shaft seal with proprietary blends of 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. This seal handles a maximum pressure of 30psi*. Rubber covered OD press fits to create a positive seal with the housing bore, providing 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 may be accommodated.  The secondary lip acts as a dust wiper for light dirt and fluid exclusion and lube retention.




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
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.

Seal Size Selector – Request a Quote

  • Enter shaft, rod or bore diameter
  • If recommended size is not feasible, please enter your preferred dimensions
  • If recommended size is not feasible, please enter your preferred dimensions
Back to Products page
Seal Housing Drawing