Premium spring-loaded single-lip rotary shaft seal with precision ground metal OD.Used for oil or grease retention.
This type is also the most economical design for general-purpose rotary sealing applications. An optimized seal lip with a garter spring maintains a constant radial lip force for optimum sealing. The metal case is exposed to the elements and to the fluid, however, the application of an optional sealant coating to the case, improves both static sealing and corrosion resistance between the housing and the seal OD. For dirty, dusty or polluted environments, our BS 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
L
F
C
Chamfer
R1
Radius
Standard Range
Functional Range
Tolerance
*
D=
Tolerance
Tol. +0.010/-0
min.
max.
0.200-0.599"
0.200 - 5.000"
+/-0.003
3/16
A + 0.375
+/-.001
0.262
0.210
0.040
0.020
0.600-1.299"
0.200 - 6.000"
+/-0.003
1/4
A + 0.500
+/-.001
0.262
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"
+/-0.005
3/4
A + 1.500
+/-.002
0.637
0.530
0.130
0.030
16.000 - 30.999"
1.000 - 63.000"
+/-0.006
3/4
A + 1.500
+/-.003
0.637
0.530
0.150
0.030
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.
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, including Functional Range and standard DIN 3760 sizes.
A
Shaft Diameter (mm)
Tol. h11
CS
Cross-section*
D
Bore Diameter
Tol. H8
L
F
C
Chamfer
R1
Radius
Standard Range
Functional Range
D=
Tol. +0.25/-0
min.
max.
5.00 - 14.99
5.00 - 120.00
5.00
A + 10.00
7.30
6.00
1.00
0.50
15.00 - 40.99
5.00 - 150.00
6.00
A + 12.00
7.30
6.00
1.30
0.50
41.00 - 59.99
5.00 - 180.00
7.50
A + 15.00
8.30
6.80
1.50
0.50
60.00 - 84.99
10.00 - 250.00
10.00
A + 20.00
10.30
8.50
2.30
0.50
85.00 - 129.99
25.00 - 400.00
12.50
A + 25.00
12.30
10.20
2.70
0.70
130.00 - 299.99
25.00 - 800.00
15.00
A + 30.00
15.30
12.70
3.50
0.70
300.00 - 799.99
50.00 - 1600.00
20.00
A + 40.00
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. Surface finish: Shaft (A) plunge ground, zero lead, Ra 0.20-0.40µm - Housing (D,L) Ra 0.8-1.6µm. Shaft material hardness min. RC45. See Technical Info for more specific information.
