Double-Lip V-Spring-loaded rotary shaft seal for extreme environments
This seal is designed to provide long service life and low friction for extreme service applications over a wide temperature range. This seal is for high PV applications characterized by high pressure and low speed. This seal has a small axial length, and is available in many materials specially suited to handle aggressive chemicals and environments. A secondary dust lip provides dirt exclusion and retains fluid. Also available in small quantities for repairs and seal replacement in 1 to 3 days.
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
**
Tolerances
L
S
C
R
Standard Range
Functional Range
Tolerance
D=
B=
D, B
Tol.+0.010/-0
min.
min.
max.
0.200 - 0.999"
0.200 - 5.000"
+0/-0.001
1/4
A + 0.500
A + 0.008
+0.002/-0
0.260
0.080
0.060
0.015
1.000 - 1.999"
0.330 - 9.500"
+0/-0.002
5/16
A + 0.625
A + 0.010
+0.002/-0
0.390
0.100
0.080
0.015
2.000 - 9.499"
0.860 - 9.500"
+0/-0.003
3/8
A + 0.750
A + 0.012
+0.004/-0
0.390
0.100
0.110
0.015
9.500 - 18.000"
1.500 - 18.000"
+0/-0.004
1/2
A + 1.000
A + 0.015
+0.005/-0
0.450
0.110
0.110
0.015
18.001 - 63.000"
consult AHPSeals engineering
*Standard cross-sections (CS) listed and non-standard sizes can be provided for any shaft size up to 63 inches. **For pressure above 3,000psi or temperature above 200°F contact engineering for clearances. Surface finish: Shaft (A) plunge ground, zero lead, Ra 6-12µin, Housing (D,L) Ra 16-32µin. Shaft material hardness 55-65RC. See Technical Info for more specific information.
Size Table (Metric)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 0.01 mm increments without tooling charges, including Functional Range.
A
Shaft Diameter (mm)
Tol. h8
CS
Cross-section*
D
Bore Diameter
Tol. H8
B
Diameter
Tol. H8 **
L
S
C
R
Standard Range
Functional Range
D=
B=
Tol.+0.20/-0
min.
min.
max.
5.00 - 24.99
5.00 - 125.00
6.50
A + 13.00
A + 0.20
6.60
2.00
1.50
0.40
25.00 - 49.99
8.00 - 240.00
8.00
A + 16.00
A + 0.25
10.00
2.50
2.00
0.40
50.00 - 234.99
22.00 - 240.00
10.00
A + 20.00
A + 0.30
10.00
2.50
2.50
0.40
235.00 - 455.99
38.00 - 456.00
12.50
A + 25.00
A + 0.40
11.00
3.00
2.80
0.40
456.00 - 1600.00
consult AHPSeals engineering
*Standard cross-sections (CS) listed and non-standard sizes can be provided for any shaft size up to 1600 mm. **For pressure above 210bar or temperature above 95°C contact engineering for clearances. Surface finish: Shaft (A) plunge ground,
zero lead Ra 0.15-0.30µm Housing (D,L) Ra 0.4-0.8µm. Shaft material hardness 55-65RC. See Technical Info for more information.
