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Polyurethane U-Seal, 3.25 Inch OD, 2.88 Inch ID, 0.19 Inch Height
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Supplier Part Number
U18-2.87
Alternate Part Numbers
Alternate Part Number
C1DN78
What kind of pressure can this seal hold up to, and is urethane gonna be okay for standard hydraulic fluid?
Question by: Eddie C on Sep 1, 2025, 6:37 AM
Urethane holds up well in most hydraulic fluid environments, and this particular seal is rated from 0 all the way up to 6,000 PSI. That covers just about any standard hydraulic cylinder application you'd run across in the field. The beveled lip design helps it break the fluid film and maintain a clean seal rather than letting fluid creep past under pressure.
Answer by: Customer Support on Sep 2, 2025, 5:19 PM
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