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SKF 24287 rotary shaft seal, transparent nitrile rubber, 2.438 x 3.35 x .375 in

SKF

SKF 24287 Shaft Seal 2.438 x 3.35 x .375 in

SKU CH-NX1A-E8XHV

A rotary shaft seal with 2.438 in inside diameter, 3.35 in outside diameter and .375 in width, rated for 10 psi and 2,700 RPM using nitrile rubber lips

  • ColorTransparent
  • Width3/8"
  • Precision sealing for 2.438 in shafts with NBR lips
  • Handles 2,700 RPM and 8.7 m/s surface speeds
  • Dual-lip CRWA1 design resists 10 psi pressure
  • Nitrile rubber suits oil, fuel, grease and hot water
  • Acrylic-coated case protects against corrosion

SKF 24287 Rotary Shaft Seal

The SKF 24287 is a CRWA1 design rotary shaft seal built for 2.438 in shaft diameters and 3.35 in bore diameters. It serves mechanics and maintenance teams replacing worn seals on pumps, gearboxes or engine components where nitrile rubber lips are compatible with the fluid used.

Replacing hardened or leaking seals

This unit replaces a failed original when the lip material has hardened, the spring has lost tension or the case coating has deteriorated. The upgrade is worth it when the application runs within the 10 psi pressure limit and 2,700 RPM speed rating and the fluid is among the listed oils, fuels, greases or hot water.

Press-fit installation with care

The seal installs by pressing the acrylic-coated case squarely into the bore until flush, using a driver that contacts only the outer case. Common problems include cocking the seal during press-in, damaging the dual nitrile lips on sharp keyways or splines, and exceeding the 8.7 mps surface speed in service.

Highlights

  • Precision sealing for 2.438 in shafts with NBR lips
  • Handles 2,700 RPM and 8.7 m/s surface speeds
  • Dual-lip CRWA1 design resists 10 psi pressure
  • Nitrile rubber suits oil, fuel, grease and hot water
  • Acrylic-coated case protects against corrosion

Specifications

BrandSKF
ColorTransparent
Width3/8"

Questions about this item

What bore diameter and housing depth does the 2.438 in inside diameter seal require?

The seal fits a 2.438 in shaft and a 3.35 in bore; the housing must accommodate the 0.375 in overall width.

How do I press the CRWA1 nitrile seal in without damaging the carbon-steel spring or the acrylic-coated case?

Use a flat driver that contacts only the outer case, press squarely until the case face is flush with the housing, and avoid hammering directly on the lips or spring.

When should I replace the seal given the 2,700 RPM and 10 psi limits?

Replace at the first sign of lip wear, hardening, or leakage; the nitrile lips and carbon-steel spring degrade faster if speed or pressure regularly approach the rated limits.

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