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Transparent rubber rotary shaft seal with metal spring, 2.375 in inside diameter

SKF

SKF 23702 Rotary Shaft Seal CRWA1 NBR 2.375 in ID

SKU CH-V5HK-9663K

Rotary shaft seal with 2.375 in inside diameter, 3.35 in outside diameter, .375 in width and dual nitrile lips rated for 10 psi and 2,700 RPM

  • ColorTransparent
  • Width3/8"
  • Seals rotating shafts reliably with NBR lip material
  • Handles 10 psi pressure for low-pressure systems
  • Resists oil, fuel, grease and hot water exposure
  • Operates up to 2,700 RPM for moderate speeds
  • Double-lip design with carbon-steel spring maintains contact

Engine Tools Rotary Shaft Seal

The SKF 23702 is a CRWA1 design rotary shaft seal built for automotive engine repair and maintenance. It suits mechanics and technicians who need a reliable lip seal for rotating shafts in fluid systems. The nitrile rubber lip material handles animal and vegetable oils, diesel, gasoline, greases, hot water, light heating oil and mineral oils.

Acrylic Coated Case With Dual Lips

A carbon steel spring maintains lip tension against the shaft while the acrylic case coating assists installation and resists corrosion. Two sealing lips and a 10 psi pressure rating provide a barrier for lubricants and contaminants alike. The 0.375 in overall width and 3.35 in outside diameter define the mounting envelope for standard inch system housings.

Verify Shaft Diameter And Speed Limits

Confirm the shaft measures 2.375 in inside diameter before ordering because the seal is sized to that specific dimension. Ensure the application does not exceed 2,700 RPM or 8.6 mps surface speed as higher speeds can reduce seal life. Check that the housing bore matches the 3.35 in outside diameter for proper press fit.

Highlights

  • Seals rotating shafts reliably with NBR lip material
  • Handles 10 psi pressure for low-pressure systems
  • Resists oil, fuel, grease and hot water exposure
  • Operates up to 2,700 RPM for moderate speeds
  • Double-lip design with carbon-steel spring maintains contact

Specifications

BrandSKF
ColorTransparent
Width3/8"

Questions about this item

What shaft speed does the CRWA1 design handle before the 8.6 mps surface-speed limit is reached?

The seal is rated for up to 2,700 RPM on a 2.375 in shaft, which corresponds to the 8.6 mps maximum surface speed.

What bore diameter and axial space are required to mount the 23702 seal?

The seal needs a 3.35 in bore diameter and 0.375 in of axial width for the case to seat correctly.

Which way does the spring-loaded lip face during installation, and what is the common mistake?

The spring side must face the fluid being sealed; the frequent error is pressing the seal in backwards so the spring points outward.

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