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SKF 14383 rotary shaft seal, transparent rubber ring with metal spring

SKF

SKF 14383 rotary shaft seal 1.438 in ID 2.502 in OD .313 in width CRW1 NBR

SKU CH-FJ0C-33K3A

Rotary shaft seal with 1.438 in inside diameter, 2.502 in outside diameter and .313 in width for fluids up to 10 psi and 3,420 RPM

  • ColorTransparent
  • Width5/16"
  • Reliable sealing up to 10 psi pressure
  • Nitrile rubber lip resists oil and fuel
  • Carbon-steel spring maintains constant lip force
  • Withstands 3,420 RPM shaft speed
  • Fits 1.438 in ID and 2.502 in OD

Rotary shaft seal 1.438 in ID

This SKF 14383 rotary shaft seal fits a 1.438 inch shaft and a 2.502 inch bore with a .313 inch width. The CRW1 design uses a single nitrile rubber lip and a carbon steel spring to retain oil, grease or fuel. It is rated for 3,420 RPM and a surface speed of 6.56 mps with a 10 psi pressure limit.

Check shaft bore and fluid compatibility

Verify the shaft diameter is 1.438 inches and the housing bore is 2.502 inches before ordering. Confirm the operating temperature suits nitrile rubber and that the fluid is animal or vegetable oil, diesel, gasoline, grease, hot water, light heating oil or mineral oil. The acrylic-coated case must suit the housing material.

Replaces worn CRW1 seals on same dimensions

This seal directly replaces a failed CRW1 seal with identical 1.438 inch ID, 2.502 inch OD and .313 inch width. The upgrade is worth it when the original lip has hardened, the spring has lost tension or leakage appears at speeds up to 3,420 RPM. Do not use if a double-lip or higher-pressure design is required.

Highlights

  • Reliable sealing up to 10 psi pressure
  • Nitrile rubber lip resists oil and fuel
  • Carbon-steel spring maintains constant lip force
  • Withstands 3,420 RPM shaft speed
  • Fits 1.438 in ID and 2.502 in OD

Specifications

BrandSKF
ColorTransparent
Width5/16"

Questions about this item

Does the SKF 14383 seal arrive alone or with installation tools and lubricant?

The box contains only the CRW1 rotary shaft seal itself; installation tools and compatible lubricant must be sourced separately.

How do I confirm the 1.438 in inside diameter and 2.502 in outside diameter suit my shaft and housing?

Measure the shaft outer diameter and housing bore directly; this seal fits a 1.438 in shaft and a 2.502 in bore with a 0.313 in width allowance.

What does the 3,420 RPM limit mean for a gasoline engine running at highway speed?

The nitrile-lip seal is rated to 3,420 RPM and 6.56 m/s surface speed, so it will handle typical gasoline-engine crankshaft speeds within those limits.

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