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Transparent nitrile rubber shaft seal with metal spring and acrylic-coated case, double-lip design

SKF

SKF 19229 shaft seal 1.938 in ID 2.623 in OD 0.313 in width CRWA1 engine tool

SKU CH-MQ7E-4PMPD

Rotary shaft seal with 1.938 in inside diameter, 2.623 in outside diameter and .313 in width for up to 3,000 RPM

  • ColorTransparent
  • Reliable sealing for oils and fuels
  • Nitrile rubber lips handle gasoline and diesel
  • Dual-lip design blocks contaminants at 3 000 RPM
  • Carbon-steel spring maintains lip pressure under 10 psi
  • Acrylic-coated case resists corrosion in harsh fluids

SKF 19229 shaft seal for rotating equipment

The SKF 19229 is a rotary shaft seal built to the CRWA1 design code with a 1.938 in inside diameter and 2.623 in outside diameter. It suits maintenance technicians and engine rebuilders who need a replacement seal for shafts running in mineral oils, diesel, gasoline, greases or hot water.

Press-fit installation

The seal presses into the housing bore; the acrylic-coated case helps it seat squarely and resists corrosion during assembly. A misaligned bore or a rough shaft finish will damage the twin nitrile lips and cause early leakage, so verify concentricity before pressing.

Limited to 10 psi and 3,000 RPM in compatible fluids

The nitrile rubber lips handle animal and vegetable oils, light heating oil and the fluids listed, but pressure above 10 psi or surface speeds beyond 7.77 mps will exceed the material rating. It is not suited for high-pressure hydraulic systems or shafts turning faster than 3,000 RPM.

Highlights

  • Reliable sealing for oils and fuels
  • Nitrile rubber lips handle gasoline and diesel
  • Dual-lip design blocks contaminants at 3 000 RPM
  • Carbon-steel spring maintains lip pressure under 10 psi
  • Acrylic-coated case resists corrosion in harsh fluids

Specifications

BrandSKF
ColorTransparent

Questions about this item

How can I verify the 19229 shaft seal is seated correctly after installation?

The seal should sit flush in the bore with the spring facing the fluid side; a thin oil film on the lip and no visible gap at the 2.623 in OD confirms proper seating.

What comes with the SKF 19229 seal and what must I supply?

The box contains the CRWA1 rotary shaft seal only; you must provide the correct installation driver, clean lubricant compatible with nitrile rubber, and a shaft measuring 1.938 in.

Which CRWA1 version suits a 1.938 in shaft running at 3,000 RPM with mineral oil?

This 19229 seal matches those specs — 1.938 in ID, 2.623 in OD, 0.313 in width, dual nitrile lips, carbon-steel spring, rated to 10 psi and 7.77 mps for mineral oils.

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