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 9852 nitrile shaft seal, translucent rubber ring with metal spring visible inside, 1 inch inner diameter

SKF

SKF 9852 Shaft Seal 1 x 1-31/64 x 1/4 in CRW1 Nitrile

SKU CH-QJ06-4PHEG

Rotary shaft seal with nitrile lip rated for 10 psi and 3,840 RPM maximum speed

  • ColorTransparent
  • Width1/4"
  • Nitrile rubber lip resists oils, fuels, greases and hot water
  • CRW1 design with carbon-steel spring maintains consistent sealing pressure
  • 10 psi maximum pressure rating suits low-pressure rotary applications
  • 3,840 RPM limit supports moderate-speed shaft operation
  • 09 m/s surface speed capability handles typical engine speeds

SKF 9852 Shaft Seal CRW1 Nitrile

This SKF 9852 rotary shaft seal uses a CRW1 design with a nitrile rubber lip and a carbon steel spring. It fits a 1 in inside diameter and a 1.499 in outside diameter with an overall width of 0.25 in. The case coating is acrylic and the colour is transparent. It is built for sealing rotating shafts in automotive and industrial equipment.

Pressure and speed limits for CRW1 seal

The seal handles a maximum pressure of 10 psi and a maximum rotational speed of 3,840 RPM with a surface speed of 5.09 mps. It suits animal and vegetable oils, diesel, gasoline, greases, hot water, light heating oil and mineral oils. Exceeding the pressure or speed ratings will reduce seal life and can cause leakage. The single-lip contact design is intended for moderate duty cycles.

1 in ID 1.499 in OD 0.25 in width fit check

The critical specification is the 1 in inside diameter, 1.499 in outside diameter and 0.25 in width combination that must match the shaft and housing exactly. If the shaft diameter or bore size differs, this seal will not seat correctly and will leak. Builders who need a different diameter, a double lip or a higher pressure rating cannot use this part.

Highlights

  • Nitrile rubber lip resists oils, fuels, greases and hot water
  • CRW1 design with carbon-steel spring maintains consistent sealing pressure
  • 10 psi maximum pressure rating suits low-pressure rotary applications
  • 3,840 RPM limit supports moderate-speed shaft operation
  • 09 m/s surface speed capability handles typical engine speeds

Specifications

BrandSKF
ColorTransparent
Width1/4"

Questions about this item

Which SKF 9852 shaft seal size should I choose for a 1 inch shaft?

The SKF 9852 is a single size with 1 inch inside diameter, 1.499 inch outside diameter and 0.25 inch width — choose it only if those dimensions match your housing and shaft exactly.

What does the 3,840 RPM limit mean when the seal is installed?

It is the maximum rotational speed the nitrile lip can sustain without overheating; running faster risks premature wear or leakage.

How does the CRW1 design with a carbon steel spring affect sealing pressure?

The CRW1 single lip and carbon steel spring are rated for only 10 psi maximum pressure, so it suits low pressure splash or gravity fed systems.

Also in this aisle

People compared these

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