We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Transparent rotary shaft seal with carbon steel spring, 2.25 in ID, 3.251 in OD, .375 in width

SKF

SKF 22441 Shaft Seal 2.25 in ID 3.251 in OD .375 in Width

SKU CH-J5H5-79VJQ

Rotary shaft seal with 2.25 in ID, 3.251 in OD, .375 in width, nitrile lips and 10 psi pressure rating

  • ColorTransparent
  • Width3/8"
  • Fits 2.25 in shafts with 3.251 in bore
  • Twin-lip nitrile rubber resists oil, fuel and hot water
  • Carbon-steel garter spring maintains lip pressure at speed
  • Rated for 820 RPM and 8.38 m/s surface velocity
  • Acrylic-coated case eases installation and protects housing

SKF 22441 Rotary Shaft Seal

The SKF 22441 is a CRWA1-design rotary shaft seal built for engine and driveline service. It fits a 2.25 in shaft inside a 3.251 in bore with a .375 in overall width. Mechanics and rebuilders use it to retain lubricant and exclude contamination on rotating assemblies.

Thermals Noise and Power

The nitrile rubber lip material handles animal and vegetable oils, diesel, gasoline, greases, hot water, light heating oil and mineral oils. Maximum pressure is rated at 10 psi while the maximum rotational speed reaches 820 RPM with a surface speed of 8.38 mps. An acrylic case coating adds corrosion resistance during operation.

Bundled Spring and Lip Design

Two sealing lips and a carbon-steel garter spring maintain consistent radial load across the contact seal interface. This arrangement compensates for lip wear and shaft run-out without extra components. No installation tools or mounting hardware are included in the package.

Highlights

  • Fits 2.25 in shafts with 3.251 in bore
  • Twin-lip nitrile rubber resists oil, fuel and hot water
  • Carbon-steel garter spring maintains lip pressure at speed
  • Rated for 820 RPM and 8.38 m/s surface velocity
  • Acrylic-coated case eases installation and protects housing

Specifications

BrandSKF
ColorTransparent
Width3/8"

Questions about this item

How do I press the 2.25 in ID seal into the housing without damaging the NBR lips?

Use a flat sleeve driver that contacts only the outer metal case and press evenly until the case seats flush; hammering directly on the lips tears the nitrile rubber.

When should I replace the seal if it runs at 2,820 RPM in mineral oil?

Inspect the NBR lips at each oil change; replace when the spring-loaded contact shows hardening, cracking or a visible wear groove on the shaft.

What operating limit appears first if the shaft speed creeps above 8.38 mps surface speed?

The NBR lip temperature rises sharply, causing the material to harden and lose its sealing pressure before the 10 psi pressure rating is reached.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.