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
SKF 34886 shaft seal, 3.5 in ID, 4.501 in OD, .375 in width, transparent nitrile rubber with carbon steel spring

SKF

SKF 34886 Shaft Seal CRW1 Nitrile 3.5 in ID 4.501 in OD .375 in Width

SKU CH-TQG5-RP74H

Rotary shaft seal with 3.5 in inside diameter, 4.501 in outside diameter and .375 in width for oil and grease sealing up to 2,160 RPM

  • ColorTransparent
  • Width3/8"
  • SKF trusted brand for reliable sealing performance
  • CRW1 design with nitrile lip handles oils, fuels and greases
  • 5 in ID and 4.501 in OD fit standard shafts
  • 2,160 RPM rating suits high-speed rotating equipment
  • Carbon-steel spring maintains consistent lip pressure over time

Shaft Seal for Rotary Applications

The SKF 34886 is a CRW1 rotary shaft seal built for 3.5 in shafts with a 4.501 in housing bore. Its single nitrile rubber lip and carbon steel spring suit general industrial and automotive sealing tasks.

Pressure and Speed Envelope

The contact seal handles a maximum of 10 psi and 2 160 RPM, yielding a surface speed limit of 10.17 mps. These boundaries define the operating window for reliable lip contact and heat management.

Nitrile Lip Material Compatibility

Nitrile rubber resists mineral oils, gasoline, diesel, greases, animal and vegetable oils, light heating oil and hot water. It is not suited for aggressive solvents, strong acids or high-temperature synthetic fluids.

Highlights

  • SKF trusted brand for reliable sealing performance
  • CRW1 design with nitrile lip handles oils, fuels and greases
  • 5 in ID and 4.501 in OD fit standard shafts
  • 2,160 RPM rating suits high-speed rotating equipment
  • Carbon-steel spring maintains consistent lip pressure over time

Specifications

BrandSKF
ColorTransparent
Width3/8"

Questions about this item

Which SKF shaft-seal size matches a 3.5 in shaft and 4.501 in bore?

The 34886 seal is built for a 3.5 in inside diameter, 4.501 in outside diameter and .375 in width, so it fits that exact shaft-and-bore combination.

What does the 2,160 RPM rating mean once the seal is installed?

It is the maximum rotational speed the nitrile lip can handle continuously; running the shaft faster risks overheating the lip and shortening seal life.

How does the 10 psi pressure limit affect sealing in practice?

The single-lip CRW1 design is rated for 10 psi maximum; pressures above that can push the lip off the shaft and cause leakage.

Also in this aisle

People compared these

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