Non-symmetrical design to provide the longest service life in medium-to high-pressure hydraulic rod sealing applications. Beveled lip for maximum fluid sealing ability. Economical hydraulic rod seal.
mineral oil-based fluids, fire-resistant water-based hydraulic fluids including HFA and HFB, sea water, biodegradable fluids, vegetable oils, bio-diesels, and most modern hydraulic fluids
Duralast 4403
5,000psi (350bar)
8,000psi (520bar)
-22°F to 260°F (-30°C to 125°C)
1.6ft/s (0.5m/s)
same as Duralast 4203
Duralast 8166
2,300psi (160bar)
3,800psi (260bar)
-4°F to 392°F (-20°C to 200°C)
3.2ft/s (1.0m/s)
fire-resistant fluids, phosphate esters, mineral oils, greases, and most inorganic acids and chemicals, gasoline and gasoline/alcohol blends, hard vacuum
Duralast 5101
2,300psi (160bar)
3,800psi (260bar)
-22°F to 212°F (-30°C to 100°C)
1.6ft/s (0.5m/s)
mineral-oil based hydraulic fluids, silicone greases, petroleum-based oils, water and alcohols
Duralast 6146
2,300psi (160bar)
3,800psi (260bar)
-30°F to 302°F (-35°C to 150°C)
2.0ft/s (0.7m/s)
excellent heat and oil resistance, including exposure to such oil additives as detergents, anti-oxidants and anti-wear agents
Additional standard materials available: High-performance polyurethanes, NBR (Nitrile), FKM, Viton®, HNBR, EPDM, Aflas®, Hytrel®, Silicone, low- and high-temperature, FDA-compliant seal material grades, PTFE, filled PTFE®, engineered thermoplastics and proprietary specialized Duralast™, Duraloy™, and Permachem™ materials.
Important Note: Maximum values above depend on extrusion gap, clearances, seal material, media, temperatures, pressures, surface speed, dynamic running surface finish and working environment. Seals cannot be operated at their upper ratings at the same time. Pressure ratings can be increased by reducing clearances. For pressure above specified operating pressure, please contact engineering@ahpseals.com
Size Table (Inch)Standard range sizes listed below are preferred sizes for new design applications; however, we offer any other seal size as required. Seals are available for any rod diameter and groove width in 0.001 inch increments, including functional range and optional groove width.
A
Rod Diameter
CS
Cross-Section
D
Groove
Diameter
B*
Gland
Diameter
Tolerance
L
Groove
Width
Standard
L
Groove Width
Optional Standards
C
R1
R
Standard Range
Functional Range
Tolerance
D=
B=
D,B
Tol.+0.012/-0
min.
max.
max.
0.250 - 0.624"
0.500 - 3.000"
+0/-.001
0.125
A + 0.250
A + 0.024
+0.002/-0
0.205
0.137/0.170/0.275
0.055
0.015
0.006
0.625 - 0.999"
0.500 - 8.000"
+0/-.001
0.125
A + 0.250
A + 0.024
+0.002/-0
0.275
0.137/0.170/0.205
0.055
0.015
0.006
1.000 - 1.499"
0.500 - 10.000"
+0/-.002
0.188
A + 0.375
A + 0.026
+0.002/-0
0.313
0.205/0.275/0.344/0.413
0.080
0.020
0.006
1.500 - 1.999"
0.500 - 10.000"
+0/-.002
0.188
A + 0.375
A + 0.026
+0.002/-0
0.344
0.205/0.275/0.313/0.413
0.080
0.020
0.006
2.000 - 3.499"
0.750 - 40.000"
+0/-.002
0.250
A + 0.500
A + 0.027
+0.003/-0
0.413
0.275/0.344/0.550/0.620
0.080
0.020
0.006
3.500 - 4.999"
1.000 - 45.000"
+0/-.002
0.313
A + 0.625
A + 0.029
+0.004/-0
0.550
0.344/0.413/0.620
0.085
0.025
0.006
5.000 - 9.999"
1.000 - 55.000"
+0/-.002
0.375
A + 0.750
A + 0.030
+0.005/-0
0.620
0.413/0.550/0.688/0.825
0.090
0.030
0.006
10.000 - 19.999"
2.000 - 60.000"
+0/-.003
0.500
A + 1.000
A + 0.031
+0.006/-0
0.825
0.550/0.620/0.688/1.100
0.120
0.030
0.006
20.000 - 29.999"
2.500 - 70.000"
+0/-.004
0.625
A + 1.250
A + 0.032
+0.007/-0
1.030
0.688/0.825/1.100/1.375
0.140
0.030
0.008
30.000 - 39.999"
5.000 - 70.000"
+0/-.005
0.750
A + 1.500
A + 0.034
+0.008/-0
1.240
0.825/1.100/1.375/1.650
0.170
0.040
0.008
40.000 - 70.000"
6.000 - 70.000"
+0/-.006
1.000
A + 2.000
A + 0.036
+0.009/-0
1.520
1.100/1.375/1.650
0.230
0.060
0.008
> 70.000"
consult with Ahpseals engineering
* Based on using wear rings. For bore diameters below 0.750" an open or split housing for easy installation is recommended.
Surface finish: rod (A) Ra 4-12µin – Static (D,L) Ra max. 32µin. See Technical Info for more specific information.
Size Table (Metric)Standard range sizes listed below are preferred sizes for new design applications. Seals are available for any shaft diameter, cross-section and groove width size in 0.01 mm increments, including functional range and optional groove width. Additionally, we offer any other seal size as required.
A
Rod Diameter (mm)
Tolerance h8
CS
Cross-Section
D
Groove
Diameter
Tol. H9
B*
Gland
Diameter
Tol. H9
L
Groove
Width
Standard
L
Groove Width
Optional Standards
C
R1
R
Standard Range
Functional Range
Standard
D=
B=
Tol.+0.3/-0
Tol.+0.3/-0
min.
max.
max.
5.00 - 14.99
5.00 - 40.00
3.50
A + 7.00
A + 0.60
5.6
5.0/6.0/7.0
1.40
0.20
0.15
15.00 - 29.99
8.00 - 110.00
4.00
A + 8.00
A + 0.60
6.3
5.7/7.0/8.0/9.0/10.0/11.0/12.0
1.60
0.20
0.15
30.00 - 49.99
8.00 - 150.00
5.00
A + 10.00
A + 0.65
8.0
7.0/9.0/10.0/11.0/13.0
1.80
0.50
0.15
50.00 - 69.99
8.00 - 200.00
6.00
A + 12.00
A + 0.70
10.0
8.0/9.0/10.0/11.0/12.0
1.80
0.50
0.15
70.00 - 109.99
25.00 - 300.00
7.50
A + 15.00
A + 0.76
12.5
10.0/11.0/12.0/13.0/14.0/16.0
2.60
0.80
0.15
110.00 - 249.99
40.00 - 600.00
10.00
A + 20.00
A + 0.79
16.0
12.5/13.0/14.0/15.0/16.5/18.0
3.00
0.80
0.15
250.00 - 499.99
50.00 - 1200.00
12.50
A + 25.00
A + 0.81
20.0
16.0/17.0/19.0/22.0/25.0
3.50
1.20
0.20
500.00 - 749.99
100.00 - 1800.00
15.00
A + 30.00
A + 0.84
25.0
19.0/20.0/22.5/24.0
4.00
1.60
0.20
750.00 - 999.99
200.00 - 1800.00
20.00
A + 40.00
A + 0.86
32.0
26.0/40.0
5.00
1.80
0.20
1000.00 - 1800.00
200.00 - 1800.00
25.00
A + 50.00
A + 0.90
40.0
35.0
6.00
2.00
0.20
> 1800.00
consult with AHPSeals engineering
*Based on using wear rings. For rod diameters below 20mm an open housing for ease of installation is recommended.
Surface finish: rod (A) Ra 0.1-0.3µm – Static (D,L) Ra max. 0.8µm. Note: See Technical Info for more specific information.
