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ST Style Urethane Wiper Ring, 0.88 Inch Rod Diameter, 1.25 Inch Wiper OD, 3/16 Inch Base Thickness

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Description & Features

Designed to keep contaminant ingress out of hydraulic cylinder rod assemblies, the ST Style Urethane Wiper Ring, 0.88 Inch Rod Diameter, 1.25 Inch Wiper OD, 3/16 Inch Base Thickness is manufactured by Hercules Sealing Products from durable urethane material. Urethane construction supports a wide service temperature range of -65°F to 220°F, making this wiper ring well-suited for demanding industrial cylinder applications across a broad range of ambient and operating conditions.

With a 0.875-inch rod diameter, 1.25-inch outer diameter, and 3/16-inch base thickness, this ST style wiper seats securely in standard gland configurations. For applications requiring higher thermal tolerance, a fluorocarbon variant with a -20°F to 400°F temperature range is available under the V suffix designation.

SKU: ST-87

Supplier Part Number (MPN): ST-87

Alternate Part Numbers: C1DL56, MI-01810676, MINO-00407Q30448

Specifications

Brand
HERCULES® SEALING PRODUCTS
Dimensions
3/16 in H
Durometer
90
Material
Urethane
Series
ST Series

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Product Questions & Answers (3)

Question by: Howard J on Dec 2, 2025, 12:04 PM
Got a cylinder rod that measures out to 7/8 inch, this wiper ring gonna seat up right on that?
Answer by: Customer Support on Dec 4, 2025, 6:52 AM
0.875 inches is exactly what this one's built for. The outer diameter runs 1.25 inches with a 3/16-inch base thickness, so as long as your gland is cut to standard ST style dimensions, it should drop right in without any fussing around.
Question by: Freddie M on Jun 4, 2025, 7:39 PM
i got a cylinder rod that measures 7/8. is the ST-87 the right wiper size for that?
Answer by: Customer Support on Jun 6, 2025, 11:23 AM
For a 0.875 inch rod, the ST-87 matches the rod diameter. It is sized with a 1.25 inch wiper OD and a 3/16 inch base thickness, so it is meant to seat in a standard ST style gland that takes those dimensions.
Question by: Pete E on Feb 8, 2026, 9:32 PM
Will this wiper ring hold up in cold weather? Say, down around zero degrees F?
Answer by: Customer Support on Feb 10, 2026, 2:35 PM
The urethane material is rated down to -65°F, so it should be good to go even in those temps.

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