Medium-pressure single-lip oil seal with integrated steel reinforcement element
The dynamic seal lip is made of a premium low-friction Duralast™ material to reduce friction, heat build-up, and wear. The rubber-covered OD of the seal creates a tight seal with the housing bore. A retaining device is recommended to hold the seal in place under pressures above 7*psi. This seal is able to accommodate press-in fitment in housings with short axial length. For dirty, dusty or polluted environments, our ASHP style with additional dust lip should be used.
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
B Diameter
Tol. +/-0.010
L
F
C
Chamfer
R1
Radius
Standard Range
Functional Range
Tolerance
*
D=
Tolerance
B=
Tol. +0.010/-0
min.
max.
0.200-0.599"
0.200 - 5.000"
+/-0.003
3/16
A + 0.375
+/-.001
A + 0.100
0.210
0.180
0.040
0.020
0.600-1.299"
0.200 - 6.000"
+/-0.003
1/4
A + 0.500
+/-.001
A + 0.150
0.210
0.180
0.050
0.020
1.300 - 2.299"
0.200 - 8.000"
+/-0.003
5/16
A + 0.625
+/-.001
A + 0.160
0.260
0.210
0.050
0.020
2.300 - 3.299"
0.250 - 10.000"
+/-0.003
3/8
A + 0.750
+/-.001
A + 0.170
0.310
0.265
0.060
0.020
3.300 - 7.999"
0.250 - 15.000"
+/-0.004
1/2
A + 1.000
+/-.0015
A + 0.200
0.410
0.350
0.090
0.030
8.000 - 15.999"
0.250 - 63.000"
+/-0.005
3/4
A + 1.500
+/-.002
A + 0.200
0.510
0.430
0.130
0.030
16.000 - 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. Seal retaining plate for ressures above 7 psi recommended. Surface finish: Shaft (A) plunge ground, zero lead, Ra 8-16µin for rubber seal lip, Ra 6-12µin for PTFE seal lip. Housing (D,L) Ra 32-63µin, 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 and in standard DIN 3760 sizes, including Functional Range.
A
Shaft Diameter (mm)
Tol. h11
CS
Cross-section
D
Bore Diameter
Tol. H8
B
Diameter Tol. +/- 0.20
L
F
C
Chamfer
R1
Radius
Standard Range
Functional Range
*
D=
B=
Tol. +0.25/-0
min.
max.
5.00 - 14.99
5.00 - 120.00
5.00
A + 10.00
A + 2.50
7.30
6.00
1.00
0.50
15.00 - 40.99
5.00 - 150.00
6.00
A + 12.00
A + 3.50
7.30
6.00
1.30
0.50
41.00 - 59.99
5.00 - 180.00
7.50
A + 15.00
A + 4.00
8.30
6.80
1.50
0.50
60.00 - 84.99
5.00 - 250.00
10.00
A + 20.00
A + 5.00
10.30
8.50
2.30
0.50
85.00 - 129.99
5.00 - 400.00
12.50
A + 25.00
A + 5.00
12.30
10.20
2.70
0.70
130.00 - 259.99
5.00 - 800.00
15.00
A + 30.00
A + 5.00
15.30
12.70
3.50
0.70
300.00 - 799.99
5.00 - 1600.00
20.00
A + 40.00
A + 5.50
20.30
17.00
5.00
0.70
800.00 - 1600.00
consult with Ahpseals engineering
*Standard cross-sections (CS) listed and non-standard sizes can be provided for any shaft size up to 1600mm. Seal retaining plate for pressures above 0.5 bar recommended. Surface finish: Shaft (A) plunge ground, zero lead, Ra 0.20-0.40µm for rubber seal lip - Ra 0.15-0.30µm for PTFE seal lip Housing (D,L) Ra 0.8-1.6µm. Shaft material hardness min. 55-65RC. See Technical Info for more specific information.
