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Polyurethane U-Seal, 1.38 Inch OD, 1.00 Inch ID, 0.25 Inch Height
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Supplier Part Number
U18-1.00-25B
Alternate Part Numbers
Alternate Part Number
C1DN32 ,
Alternate Part Number
MI-01198845 ,
Alternate Part Number
MINO-00407X60444
What's the deal with that beveled lip? What's it do?
Question by: Brenda H on Dec 27, 2025, 7:39 PM
Functionally, the beveled lip is designed to provide superior film breaking in hydraulic applications.
Answer by: Customer Support on Dec 29, 2025, 4:52 PM
i’ve got a gland cut for a 1 inch rod, is this u-seal the right size or am i thinkin about it wrong
Question by: Rusty H on Mar 17, 2026, 8:35 AM
Fit comes down to the seal’s ID and OD. This U-seal has a 1.00 inch ID, a 1.375 inch OD, and a 0.25 inch height, with a 0.1875 inch cross section. If those match what your groove and hardware are built around, it’s the correct size.
Answer by: Customer Support on Mar 18, 2026, 1:29 PM
What kind of pressure range can this u-seal handle, and is it gonna hold up in a high-cycle hydraulic system?
Question by: Tony M on Jul 29, 2025, 8:19 AM
Rated from 0 to 6,000 PSI, so it covers a pretty wide range of hydraulic applications without issue. The polyurethane construction is known for holding up well under repeated pressure cycles compared to softer seal materials, and the beveled lip design helps it maintain a clean film break during operation. For most industrial hydraulic setups running within that pressure window, it should give you solid, consistent performance.
Answer by: Customer Support on Jul 31, 2025, 6:02 AM
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