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5/16" Cross Section

Symmetrical Seals - 8400 Series - HRU

HRU and 8400 Series u-cups are symmetrical lip seals for use in either rod or piston sealing applications. The thin, flexible lip design reacts to low pressure and provides an extremely smooth, steady movement with less break away force required because of the inherent low friction. The HRU - 8400 style utilizes a beveled lip, ideal for wiping fluid film. Style HRU - 8400 u-seals are precision molded from 80 Durometer Buna-N rubber or FKM. While the HRU - 8400 U-cups are primarily designed for pneumatic applications, they can also be used in low to medium pressure hydraulic applications. The pressure range of the u-cups may be extended by incorporating an back-up ring.

*Fluorocarbon - FKM products end with a "V" all others are Buna-N 80 Durometer.





Image Model+ Item Name Qty. Price Quantity Discounts
HRU31-2.87-31 Homogeneous U-Seals HRU31-2.87-31

HRU31-2.87-31 Homogeneous U-Seals

2-7/8" ID X 3-1/2" OD X 5/16" HT Homogenous U-cups (block vees) are a non-loaded, single material U-cup. The HRU seal is popular in...
0
$8.51

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Quantity Discounts
1-5$8.51
6-35$6.808
36+$5.106
HRU31-4.37-31 Homogeneous U-Seals HRU31-4.37-31

HRU31-4.37-31 Homogeneous U-Seals

4-3/8" ID X 5" OD X 5/16" HT Homogenous U-cups (block vees) are a non-loaded, single material U-cup. The HRU seal is popular in low...
0
$7.79

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Quantity Discounts
1-5$7.79
6-38$6.232
39+$4.674
HRU31-5.37-31 Homogeneous U-Seals HRU31-5.37-31

HRU31-5.37-31 Homogeneous U-Seals

5-3/8" ID X 6" OD X 5/16" HT Homogenous U-cups (block vees) are a non-loaded, single material U-cup. The HRU seal is popular in low...
0
$11.67

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Quantity Discounts
1-3$11.67
4-25$9.336
26+$7.002
HRU31-5.37-31V Homogeneous U-Seals HRU31-5.37-31V

HRU31-5.37-31V Homogeneous U-Seals

5-3/8" ID X 6" OD X 5/16" HT Fluorocarbon FKM Homogenous U-cups (block vees) are a non-loaded, single material U-cup. The HRU seal is...
0
$50.56

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Quantity Discounts
1$50.56
2-9$40.448
10+$30.336
HRU31-5.50-31 Homogeneous U-Seals HRU31-5.50-31

HRU31-5.50-31 Homogeneous U-Seals

5-1/2" ID X 5-1/8" OD X 5/16" HT Homogenous U-cups (block vees) are a non-loaded, single material U-cup. The HRU seal is popular in...
0
$15.33

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Quantity Discounts
1-3$15.33
4-19$12.264
20+$9.198
HRU31-5.50-31V Homogeneous U-Seals HRU31-5.50-31V

HRU31-5.50-31V Homogeneous U-Seals

5-1/2" ID X 6-1/8" OD X 5/16" HT Fluorocarbon FKM Homogenous U-cups (block vees) are a non-loaded, single material U-cup. The HRU seal...
0
$66.42

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Quantity Discounts
1$66.42
2-9$53.136
10+$39.852
HRU31-6.37-31 Homogeneous U-Seals HRU31-6.37-31

HRU31-6.37-31 Homogeneous U-Seals

6-3/8" ID X 7" OD X 5/16" HT Homogenous U-cups (block vees) are a non-loaded, single material U-cup. The HRU seal is popular in low...
0
$18.46

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Quantity Discounts
1-2$18.46
3-16$14.768
17+$11.076
HRU31-6.37-31V Homogeneous U-Seals HRU31-6.37-31V

HRU31-6.37-31V Homogeneous U-Seals

6-3/8" ID X 7" OD X 5/16" HT Fluorocarbon FKM Homogenous U-cups (block vees) are a non-loaded, single material U-cup. The HRU seal is...
0
$70.06

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Quantity Discounts
1$70.06
2-9$56.048
10+$42.036
HRU31-7.37-31 Homogeneous U-Seals HRU31-7.37-31

HRU31-7.37-31 Homogeneous U-Seals

7-3/8" ID X 8" OD X 5/16" HT Homogenous U-cups (block vees) are a non-loaded, single material U-cup. The HRU seal is popular in low...
2
$22.86

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Quantity Discounts
1-2$22.86
3-13$18.288
14+$13.716
HRU31-7.37-31V Homogeneous U-Seals HRU31-7.37-31V

HRU31-7.37-31V Homogeneous U-Seals

7-3/8" ID X 8" OD X 5/16" HT Fluorocarbon FKM Homogenous U-cups (block vees) are a non-loaded, single material U-cup. The HRU seal is...
0
$107.40

Add:

Quantity Discounts
1$107.40
2-9$85.92
10+$64.44