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Transparent rotary shaft seal, 2.625 by 3.5 by .375 inches, NBR lips

SKF

SKF 26186 Shaft Seal 2.625 x 3.5 x .375 in CRWA1 NBR interior care

SKU CH-7FHT-BBY96

Rotary shaft seal with 2.625 in inner diameter and 3.5 in outer diameter handles oils, greases and fuels up to 2,580 RPM

  • ColorTransparent
  • Width3/8"
  • Reliable sealing up to 10 psi with dual NBR lips
  • Fits shafts of 2.625 in ID and 3.5 in OD
  • Withstands 2580 RPM for high-speed applications
  • Carbon steel spring maintains constant lip pressure
  • Compatible with oils, fuels, greases and hot water

SKF 26186 Rotary Shaft Seal

The SKF 26186 is a CRWA1 rotary shaft seal designed for retaining lubricants and excluding contaminants in rotating equipment. It suits maintenance technicians and engineers servicing industrial or automotive machinery where a 2.625 inch shaft diameter and 3.5 inch bore are required.

Verify shaft and housing dimensions before ordering

Confirm the shaft outside diameter measures 2.625 inches and the housing bore measures 3.5 inches to match the seal's inside and outside diameters. Ensure the 0.375 inch overall width fits the available gland depth and that the application does not exceed 10 psi pressure or 2,580 RPM rotational speed.

Dual-lip NBR design with carbon steel spring

The nitrile rubber lips handle animal and vegetable oils, diesel, gasoline, greases, hot water, light heating oil, and mineral oils. Two sealing lips and a carbon steel garter spring maintain consistent radial contact, while the acrylic case coating eases installation and resists bore corrosion.

Highlights

  • Reliable sealing up to 10 psi with dual NBR lips
  • Fits shafts of 2.625 in ID and 3.5 in OD
  • Withstands 2580 RPM for high-speed applications
  • Carbon steel spring maintains constant lip pressure
  • Compatible with oils, fuels, greases and hot water

Specifications

BrandSKF
ColorTransparent
Width3/8"

Questions about this item

Does the SKF 26186 shaft seal arrive as a single unit or are installation tools included?

The seal is supplied as one CRWA1 rotary shaft seal with a nitrile rubber lip and carbon steel spring; no installation tools or additional hardware are provided in the package.

How do I decide whether the 2.625 in inside diameter or the 3.5 in outside diameter version suits my shaft and housing?

Match the seal to your shaft and bore: the 2.625 in inside diameter fits the shaft, while the 3.5 in outside diameter seats in the housing; choose the seal only when both dimensions correspond to your assembly.

What does the 2,580 RPM maximum rotational speed mean for a running engine?

At 2,580 RPM the nitrile lip stays within its rated surface speed of 9 mps, so the seal will maintain contact and contain oil, grease or fuel without overheating.

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