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 10157 rotary shaft seal 1 x 2.047 x .25 in nitrile rubber transparent finish

SKF

SKF 10157 Rotary Shaft Seal 1 x 2.047 x .25 in CRWA1 Nitrile

SKU CH-A3MP-64THC

Rotary shaft seal with nitrile lips rated for 10 psi and 3,840 RPM, suitable for oils, fuels, greases and hot water

  • ColorTransparent
  • Width1/4"
  • Reliable sealing with nitrile rubber lip material
  • Fits 1 in shaft and 2.047 in housing bore
  • Low-friction operation at up to 3,840 RPM
  • Handles 10 psi pressure with dual-lip design
  • Durable carbon-steel spring maintains lip tension

Rotary Shaft Seal CRWA1

The SKF 10157 is a new rotary shaft seal built to the CRWA1 design code. It fits a 1 inch shaft and seats in a 2.047 inch bore with a .25 inch overall width. The nitrile rubber lip and carbon steel spring suit general automotive fluid sealing tasks.

For oil and grease sealing on 1 inch shafts

Mechanics and engine builders who need a contact seal for animal or vegetable oils, diesel, gasoline, greases, hot water, light heating oil or mineral oils will find this part matches the spec. It is not suited for buyers who need a seal for a different shaft diameter, a higher pressure rating than 10 psi, or speeds above 3,840 RPM.

CRWA1 design with nitrile lip material

The CRWA1 design code defines a two lip contact seal with an acrylic coated case and a carbon steel garter spring. The lip material is nitrile rubber, which determines compatibility with the listed fluids and the 5.09 mps maximum surface speed. This specification decides whether the seal matches the application.

Highlights

  • Reliable sealing with nitrile rubber lip material
  • Fits 1 in shaft and 2.047 in housing bore
  • Low-friction operation at up to 3,840 RPM
  • Handles 10 psi pressure with dual-lip design
  • Durable carbon-steel spring maintains lip tension

Specifications

BrandSKF
ColorTransparent
Width1/4"

Questions about this item

What housing bore diameter does the 2.047 in outside diameter of the SKF 10157 seal require?

The seal is designed for a housing bore of 2.047 in. Press it in squarely using a driver that contacts only the outer case to avoid distorting the nitrile lips.

Which way round does the spring-loaded lip face during installation?

The spring side of the dual-lip CRWA1 design must face the fluid being sealed. Reversing it is the most common error and will cause immediate leakage.

When should the seal be replaced based on the 840 RPM speed limit?

Replace the seal if the shaft speed regularly exceeds 840 RPM or if the nitrile lips show hardening, cracking or leakage during routine inspection.

Also in this aisle

People compared these

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