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Transparent rotary shaft seal with metal spring visible inside rubber lip

SKF

SKF 14789 Rotary Shaft Seal CRW1 1.494 x 2.06 x .27 in

SKU CH-1W32-2VHFM

Rotary shaft seal with 1.494 in inside diameter, 2.06 in outside diameter and 0.27 in width for oils, greases and fuels up to 3,360 RPM

  • ColorTransparent
  • Width17/64"
  • CRW1 design with single lip seals 1.494 in shafts reliably
  • Nitrile rubber lip resists oils, fuels, grease and hot water
  • Carbon steel spring maintains 10 psi pressure rating consistently
  • 360 RPM maximum speed suits moderate rotation applications well
  • Acrylic case coating adds protection during installation and service

SKF 14789 Rotary Shaft Seal

This SKF 14789 rotary shaft seal fits shafts with a 1.494 in inside diameter and a 2.06 in outside diameter. It uses a CRW1 design with a single nitrile rubber lip and a carbon steel spring. The seal handles animal and vegetable oils, diesel, gasoline, greases, hot water, light heating oil and mineral oils. It suits maintenance and repair tasks on compatible rotating equipment.

Thermals noise and power draw

The seal operates at a maximum surface speed of 6.72 mps and a maximum rotational speed of 3,360 RPM. Maximum pressure is rated at 10 psi. The acrylic-coated case and nitrile rubber lip manage friction heat within these limits. No external power or active cooling is required for the sealing function itself.

Upgrade path and fitment

This component replaces a worn or leaking seal of the same CRW1 design and dimensions. The jump is worth it when the original seal shows fluid loss, contamination ingress or lip wear. It is not for applications exceeding the stated speed, pressure or fluid compatibility ranges, nor for shafts with different diameters or seal profiles.

Highlights

  • CRW1 design with single lip seals 1.494 in shafts reliably
  • Nitrile rubber lip resists oils, fuels, grease and hot water
  • Carbon steel spring maintains 10 psi pressure rating consistently
  • 360 RPM maximum speed suits moderate rotation applications well
  • Acrylic case coating adds protection during installation and service

Specifications

BrandSKF
ColorTransparent
Width17/64"

Questions about this item

How do I press the SKF 14789 seal into a 2.06 in bore without damaging the 17/64 in wide nitrile lip?

Use a flat driver plate that contacts only the outer metal case, pressing evenly until the case sits flush; avoid hammering directly on the flexible lip.

When should I replace the nitrile rubber lip on this 1.494 in ID shaft seal?

Replace it when the lip shows hardening, cracking or a flattened contact band, or if leakage appears around the 2.06 in OD.

At what shaft speed does the 10 psi pressure limit become the controlling factor for this CRW1 seal?

The 10 psi maximum pressure is the limiting factor at any speed up to the rated 3,360 RPM; beyond that speed the seal is not rated.

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