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Two blue polyurethane Y-shape radial shaft seals 31.5mm ID x 41.5mm OD x 6mm width

Unique-Bargains

Unique-Bargains UHS Radial Shaft Seal 31.5mm ID x 41.5mm OD x 6mm Width PU Oil Seal Blue Pack of 2

SKU CH-5041-79M4X

Pack of two polyurethane radial shaft seals, 31.5 mm inner by 41.5 mm outer diameter and 6 mm wide, rated to 35 MPa and 100 °C for hydraulic cylinder dust and oil sealing

  • Main materialPolyurethane
  • Prevents contaminants entering hydraulic cylinders with Y-shape lip design
  • Withstands up to 35Mpa pressure for reliable industrial sealing
  • Operates from -35°C to 100°C across demanding environments
  • Polyurethane construction resists oil, wear and aging for long service life
  • Pack includes two 31.5mm ID seals for piston or rod applications

Precise Hydraulic Seal Dimensions

These blue polyurethane radial shaft seals measure 31.5 mm inner diameter by 41.5 mm outer diameter with a 6 mm width. The Y-shaped 90A durometer profile suits piston and piston rod applications in industrial hydraulic cylinders, hoists and guide rod assemblies. Pack contains two seals for matched replacement or spares.

Verify Shaft Groove And Pressure Rating

Confirm your shaft diameter matches the 31.5 mm inner dimension and that the housing bore accepts the 41.5 mm outer diameter before ordering. The seal is rated for pressures below 35 MPa and surface speeds under .5 m/s; exceeding either limit will cause premature failure. Operating temperature must stay within -35 °C to 100 °C.

Polyurethane Construction Resists Oil And Wear

The 90A polyurethane material delivers oil resistance, wear resistance, low-temperature flexibility and aging resistance in a single component. Its high hardness and elasticity allow the twin lips to maintain contact during dynamic motion while the Y-section cross-section simplifies press-fit installation without special tools. Blue colour aids visual inspection for damage or contamination.

How it compares

Measured against everything we stock in Caulking & Sealing Supplies, at today’s prices. Recalculated every night.

Price $3.99
Cheaper than about 95% of the 631 comparable items (median $16.99).

Specifications

Product
Brand nameUnique Bargains
Size & build
Main materialPolyurethane

Questions about this item

What does the pack contain and is anything else needed for installation?

The pack contains two blue polyurethane Y-shape lip seals measuring 31.5 mm inner diameter, 41.5 mm outer diameter and 6 mm width. No extra parts are required for fitting.

Should I choose a different hardness or temperature rating for my hydraulic cylinder?

These seals are 90A hardness and rated from -35 °C to 100 °C (-31 °F to 212 °F). Select them when your cylinder operates within that temperature band and needs high hardness with good elasticity.

What does the 35 MPa pressure rating mean once the seal is fitted in a working cylinder?

It means the seal will maintain its lip contact and resist extrusion at system pressures up to 35 MPa provided the surface speed stays below 0.5 m/s and the temperature remains inside the stated range.

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