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 9876 nitrile rubber shaft seal, translucent CRW1 design

SKF

SKF 9876 Shaft Seal 1 x 1-1/2 x 1/4 in CRW1 Nitrile Rubber

SKU CH-532P-GZFJC

Rotary shaft seal with nitrile rubber lip, 10 psi pressure rating and 840 RPM maximum speed

  • ColorTransparent
  • Seals shafts against leaks with nitrile rubber lip
  • Handles 10 psi pressure for reliable containment
  • Rated to 3,840 RPM for high-speed use
  • Withstands 5.09 m/s surface speed in operation
  • Compatible with oils, fuels, grease and hot water

Rotary Shaft Seal 9876

The SKF 9876 is a CRW1 design rotary shaft seal built for engines and rotating equipment. It suits technicians and engineers who need a reliable lip seal for 1-inch shafts in automotive or industrial maintenance.

Nitrile rubber lip at 3,840 RPM

The single nitrile rubber lip runs against a carbon steel spring at speeds up to 3,840 RPM with a surface speed of 5.09 mps. It handles pressures to 10 psi in oil, fuel, grease and hot water without excessive friction or heat buildup.

Fits 1.499-inch bore with .25-inch width

The seal presses into a 1.499-inch housing bore and occupies just .25 inch of axial space, leaving room for adjacent bearings or spacers. Its acrylic-coated case resists corrosion in the listed fluids, so the surrounding assembly stays protected.

Highlights

  • Seals shafts against leaks with nitrile rubber lip
  • Handles 10 psi pressure for reliable containment
  • Rated to 3,840 RPM for high-speed use
  • Withstands 5.09 m/s surface speed in operation
  • Compatible with oils, fuels, grease and hot water

Specifications

BrandSKF
ColorTransparent

Questions about this item

How do I install this SKF 9876 shaft seal without damaging the nitrile rubber lip?

Press the seal squarely into the 1.499 in bore using a flat driver that contacts only the outer case; avoid hammering directly on the 0.25 in wide lip or the carbon-steel spring will unseat.

When should I replace this CRW1 seal in a diesel or gasoline system?

Replace at the first sign of seepage, lip hardening, or spring corrosion; nitrile rubber degrades faster with hot water or light heating oil above the 10 psi pressure limit.

What is the first limit reached if the shaft runs continuously at 3,840 RPM?

The 5.09 mps surface speed limit is reached first; exceeding it generates heat that hardens the nitrile lip and breaks the carbon-steel spring tension.

Also in this aisle

People compared these

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