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Transparent SKF 19210 rotary shaft seal, CRW1 nitrile rubber lip, carbon steel spring, acrylic-coated case, 1.938 x 2.437 x .25 in

SKF

SKF 19210 Rotary Shaft Seal CRW1 NBR 1.938 x 2.437 x .25 in

SKU CH-TVD6-WHPKP

Rotary shaft seal with a single nitrile lip, carbon-steel spring and acrylic-coated case for oils, grease, gasoline and hot water up to 10 psi and 3,000 RPM

  • ColorTransparent
  • Reliable sealing for oils and fuels with nitrile rubber lip
  • Handles up to 10 psi pressure in low-pressure systems
  • Fits 1.938 in shaft and 2.437 in bore precisely
  • Operates at speeds up to 3 000 RPM reliably
  • Single-lip CRW1 design with carbon-steel spring maintains contact

SKF 19210 Rotary Shaft Seal

The SKF 19210 is a CRW1 design rotary shaft seal built for automotive engine service. It fits a 1.938 in shaft and a 2.437 in bore with a .25 in overall width. The single nitrile rubber lip handles animal and vegetable oils, diesel, gasoline, greases, hot water, light heating oil and mineral oils.

Sustained load behaviour

At continuous speeds up to 3,000 RPM the seal maintains contact at a surface speed of 7.77 mps without exceeding the 10 psi pressure limit. The carbon steel spring keeps the lip loaded against the shaft while the acrylic case coating resists fluid attack during long runs.

Installation notes

Press the seal squarely into the bore so the coated case seats evenly; tilting the case damages the coating and creates a leak path. Lubricate the nitrile lip with clean oil before sliding it over the shaft to avoid cutting the single lip on sharp edges or keyways. Builders who need a double-lip design or higher pressure rating cannot use this part.

Highlights

  • Reliable sealing for oils and fuels with nitrile rubber lip
  • Handles up to 10 psi pressure in low-pressure systems
  • Fits 1.938 in shaft and 2.437 in bore precisely
  • Operates at speeds up to 3 000 RPM reliably
  • Single-lip CRW1 design with carbon-steel spring maintains contact

Specifications

BrandSKF
ColorTransparent

Questions about this item

How much heat does the NBR lip generate when the seal runs continuously at 3,000 RPM?

The nitrile rubber lip is rated for a maximum surface speed of 7.77 mps, which corresponds to 3,000 RPM on the 1.938 in shaft; heat rise depends on lubrication and load, so monitor housing temperature in your application.

What shaft diameter and housing bore must already be present for this 19210 seal to fit?

The seal requires a 1.938 in shaft and a 2.437 in housing bore with a 0.25 in groove width; verify both dimensions before installation.

Will the acrylic-coated case and carbon-steel spring hold up in a legacy engine that sees gasoline and mineral oil?

Yes, the seal is compatible with gasoline, mineral oils, diesel, greases, animal and vegetable oils, and hot water, so it suits older engines using those fluids.

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