Heavy-duty single-lip rotary shaft seal design for use in harsh and severe environments and shock loads.
Designed to handle harsh or arduous conditions where most seals have a short life. This style has higher shaft run-out and misalignment than traditional oil seals. Available in many metal and lip materials, this seal can handle high speed runout or pressurized chemicals. It utilizes press-in fitment for open seal housing. This seal design eliminates spring dumping, and provides protection for the sealing lip during installation. It can be retrofitted to replace standard seals.
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.
0.750-2.999"
0.750 - 31.000"
+/-0.003
7/16
A + 0.875
+/-.001
A + 0.100
0.450
0.383
0.040
0.020
3.000 - 5.999"
0.750 - 31.000"
+/-0.004
1/2
A + 1.000
+/-.0015
A + 0.200
0.512
0.425
0.090
0.030
6.000 - 13.999"
1.000 - 31.000"
+/-0.005
5/8
A + 1.250
+/-.002
A + 0.200
0.637
0.530
0.130
0.030
14.000 - 30.999"
2.000 - 31.000"
+/-0.006
3/4
A + 1.500
+/-.003
A + 0.220
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. Seal retaining plate for pressures 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 0.01mm increments, 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.
20.00 - 69.99
20.00 - 800.00
10.00
A + 20.00
A + 2.50
11.30
9.50
1.00
0.50
70.00 - 149.99
20.00 - 800.00
12.50
A + 25.00
A + 5.00
12.30
10.20
2.70
0.70
150.00 - 359.99
25.00 - 800.00
15.00
A + 30.00
A + 5.00
15.30
12.70
3.50
0.70
360.00 - 799.99
50.00 - 800.00
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 0.5bar ecommended. Surface finish: Shaft (A) plunge ground, zero lead, Ra 0.20-0.40µm for rubber, Ra 0.15-0.30µm for PTFE seal lip, ousing (D,L) Ra 0.8-1.6µm. Shaft material hardness min. 55-65RC. See Technical Info for more specific information.
