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 SKF 17144 rotary shaft seal, CRWA1 design, 1.719 x 2.561 x .315 in, nitrile rubber double lip, carbon steel spring

SKF

SKF 17144 Shaft Seal CRWA1 1.719 x 2.561 x .315 in

SKU CH-YZGE-0EZVY

Rotary shaft seal CRWA1 with nitrile lips, 1.719 in ID, 2.561 in OD, .315 in width, 3,180 RPM limit and 10 psi rating

  • ColorTransparent
  • Seals rotating shafts reliably with dual-lip nitrile design
  • Withstands oils, fuels, greases and hot water up to 10 psi
  • Fits 1.719 in shaft bores with 2.561 in housing diameter
  • Operates at speeds up to 3,180 RPM with 7.29 m/s surface speed
  • Spring-loaded carbon-steel garter maintains constant lip contact

SKF 17144 Shaft Seal CRWA1

This SKF 17144 rotary shaft seal suits maintenance teams and engine rebuilders who need a direct replacement for worn CRWA1 seals. The nitrile rubber lips handle animal and vegetable oils, diesel, gasoline, greases, hot water, light heating oil and mineral oils. It fits shafts with a 1.719 in inside diameter and a 2.561 in bore.

Critical CRWA1 dimensions and speed limit

The single specification that decides fit is the 1.719 in inside diameter combined with a 2.561 in outside diameter and .315 in overall width. The design is rated to a maximum rotational speed of 180 RPM and a maximum surface speed of 7.29 mps. Exceeding these limits will cause premature lip wear and leakage.

Press-fit installation and common pitfalls

Installation is a straight press fit into the housing bore; the carbon steel garter spring holds the twin lips against the shaft. What usually goes wrong is damaging the nitrile lips during insertion or seating the seal crooked, which lets fluid bypass the 10 psi pressure rating. Clean the shaft surface and use a driver that contacts the outer case only.

Highlights

  • Seals rotating shafts reliably with dual-lip nitrile design
  • Withstands oils, fuels, greases and hot water up to 10 psi
  • Fits 1.719 in shaft bores with 2.561 in housing diameter
  • Operates at speeds up to 3,180 RPM with 7.29 m/s surface speed
  • Spring-loaded carbon-steel garter maintains constant lip contact

Specifications

BrandSKF
ColorTransparent

Questions about this item

What does the 1.719 in inside diameter mean when the seal is installed on a shaft?

The 1.719 in inside diameter matches the shaft size the seal is designed to fit, so the lip contacts the shaft at that dimension to retain lubricant and exclude contaminants.

How does the CRWA1 design code affect the pressure limit in use?

The CRWA1 design is rated for a maximum pressure of 10 psi, so it is suited for low-pressure or splash-lubricated applications rather than pressurised systems.

What shaft diameter and housing bore are needed to mount this seal?

The seal requires a 1.719 in shaft diameter and a 2.561 in housing bore, with an overall width of .315 in to seat correctly in the gland.

Also in this aisle

People compared these

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