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Transparent rubber shaft seal with metal spring, 2.25 by 2.875 by .313 inches

SKF

SKF 22328 Shaft Seal CRWA1 NBR 2.25 x 2.875 x .313 in

SKU CH-RWJD-KVN0J

Rotary shaft seal with nitrile rubber lips, 2.25 in inside and 2.875 in outside diameter, 0.313 in wide, rated to 10 psi and 2,820 RPM for oils, greases and fuels

  • ColorTransparent
  • Width5/16"
  • Reliable sealing for 2.25 in shafts with 2.875 in bore
  • Nitrile rubber lips handle oils, fuels, greases and hot water
  • Dual-lip CRWA1 design resists 10 psi pressure at 820 RPM
  • Carbon steel spring maintains lip contact up to 8.38 m/s surface speed
  • Acrylic-coated case fits standard inch-dimension housings

SKF 22328 Rotary Shaft Seal

The SKF 22328 is a CRWA1-design rotary shaft seal built for engines and rotating equipment. It fits a 2.25 in shaft and a 2.875 in bore with a .313 in width. Mechanics and maintenance teams use it to retain lubricants and exclude contaminants in automotive and industrial applications.

Pressure and speed limits

This seal handles a maximum pressure of 10 psi and a maximum rotational speed of 820 RPM. The nitrile rubber lips are rated for animal and vegetable oils, diesel, gasoline, greases, hot water, light heating oil and mineral oils. Surface speed should not exceed 8.38 mps to avoid premature lip wear.

Installation notes

Press the seal squarely into the bore using a driver that contacts the outer case only; the acrylic coating helps prevent bore corrosion. Ensure the shaft surface is smooth and free of nicks to protect the dual-lip design. The carbon-steel garter spring must stay seated during assembly or the seal will leak.

Highlights

  • Reliable sealing for 2.25 in shafts with 2.875 in bore
  • Nitrile rubber lips handle oils, fuels, greases and hot water
  • Dual-lip CRWA1 design resists 10 psi pressure at 820 RPM
  • Carbon steel spring maintains lip contact up to 8.38 m/s surface speed
  • Acrylic-coated case fits standard inch-dimension housings

Specifications

BrandSKF
ColorTransparent
Width5/16"

Questions about this item

Which SKF 22328 shaft seal size should I choose for a 2.25 inch shaft?

This seal has an inside diameter of 2.25 in and an outside diameter of 2.875 in with a .313 in width, so it fits a 2.25 in shaft and a 2.875 in bore.

What does the 820 RPM limit mean once the seal is installed?

The maximum rotational speed is 820 RPM; running the shaft faster can exceed the lip material capability and cause premature wear or leakage.

How does the CRWA1 design with nitrile rubber limit pressure and fluid compatibility?

The CRWA1 nitrile rubber seal handles up to 10 psi and is rated for animal and vegetable oils, diesel, gasoline, greases, hot water, light heating oil and mineral oils.

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