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SKF 27271 nitrile shaft seal 2.75 x 3.5 x .25 in HM14 transparent ring

SKF

SKF 27271 Shaft Seal 2.75 x 3.5 x .25 in HM14 Nitrile

SKU CH-564A-R4WPT

Nitrile rotary shaft seal with 2.75 in inside and 3.5 in outside diameters for grease-lubricated agricultural machinery

  • ColorTransparent
  • Width1/4"
  • Reliable sealing for grease-lubricated machinery up to 2,513 RPM
  • Compatible with diesel, gasoline, mineral oils, greases and hot water
  • HM14 design with single nitrile lip handles 10 psi pressure
  • Precise 2.75 in ID × 3.5 in OD × .25 in width fit
  • Uncoated case suits agricultural and light industrial applications

SKF 27271 Rotary Shaft Seal

The SKF 27271 is a new rotary shaft seal built to the HM14 design code. It fits a 2.75 inch shaft inside a 3.5 inch bore with an overall width of .25 inch. The single nitrile rubber lip handles grease-lubricated agricultural machinery and resists animal or vegetable oils, diesel, gasoline, greases, hot water and mineral oils. The uncoated case installs directly without a spring.

Mechanics maintaining farm equipment

This seal suits technicians servicing grease-lubricated agricultural drives that run up to 2,513 RPM and see no more than 10 psi. It will not serve applications that need a double-lip design, a spring-loaded lip or a coated case for corrosion protection. Buyers working with higher-pressure hydraulic systems or non-listed fluids should look at a different specification.

Steady operation at rated speed

Under continuous rotation the nitrile lip maintains contact without the aid of a spring, keeping grease in and contaminants out up to the 2,513 RPM limit. Heat buildup stays low because the design runs unpressurised at 10 psi maximum. The single lip wears evenly in steady agricultural duty rather than in short high-speed bursts.

Highlights

  • Reliable sealing for grease-lubricated machinery up to 2,513 RPM
  • Compatible with diesel, gasoline, mineral oils, greases and hot water
  • HM14 design with single nitrile lip handles 10 psi pressure
  • Precise 2.75 in ID × 3.5 in OD × .25 in width fit
  • Uncoated case suits agricultural and light industrial applications

Specifications

BrandSKF
ColorTransparent
Width1/4"

Questions about this item

What shaft diameter must I already have for the 27271 seal to fit?

The seal is designed for a 2.75 in inside diameter, so the shaft must match that size.

Will the nitrile lip material hold up against the diesel and gasoline residues in my older engine?

The nitrile rubber lip is rated for diesel, gasoline, mineral oils, greases and other listed fluids.

How can I confirm the seal is seated correctly after installation?

Check that the 0.25 in width sits flush in the housing and that the spring-loaded lip contacts the shaft evenly.

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