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Small circular SKF 13568 rotary shaft seal, transparent nitrile rubber with carbon steel spring visible inside

SKF

SKF 13568 Rotary Shaft Seal 1.375 in ID 2 in OD .313 in width

SKU CH-T7EK-QR901

Seals a 1.375 in shaft with a nitrile lip rated for 10 psi and 3,480 RPM

  • ColorTransparent
  • Seals shafts up to 3,480 RPM with single nitrile lip
  • Resists oil, fuel, grease and hot water contact
  • Carbon-steel spring maintains lip pressure at 10 psi max
  • Acrylic-coated case protects against corrosion during installation
  • Fits 1.375 in ID by 2 in OD housings precisely

SKF 13568 Rotary Shaft Seal

This SKF 13568 rotary shaft seal suits equipment that needs a 1.375 in inside diameter and a 2 in outside diameter. The CRW1 design uses a single nitrile rubber lip with a carbon steel spring. It handles fluids such as mineral oils, diesel, gasoline, greases, hot water, light heating oil and animal or vegetable oils at up to 10 psi and 3,480 RPM.

Check shaft and housing before ordering

Verify the shaft measures 1.375 in and the housing bore measures 2 in so the seal seats correctly. Confirm the fluid in your system is compatible with nitrile rubber and that operating pressure stays at or below 10 psi. Ensure rotational speed does not exceed 3,480 RPM and surface speed stays within 6.38 mps for reliable sealing.

Replaces worn CRW1 seals of the same dimensions

This seal directly replaces a failed CRW1 unit with identical 1.375 in ID, 2 in OD and .313 in width. The jump is worth it when the old lip shows hardening, cracking or leakage that lets fluid escape. Buyers needing a different lip material, a double-lip design or higher pressure ratings should look elsewhere.

Highlights

  • Seals shafts up to 3,480 RPM with single nitrile lip
  • Resists oil, fuel, grease and hot water contact
  • Carbon-steel spring maintains lip pressure at 10 psi max
  • Acrylic-coated case protects against corrosion during installation
  • Fits 1.375 in ID by 2 in OD housings precisely

Specifications

BrandSKF
ColorTransparent

Questions about this item

What comes in the box with the SKF 13568 seal and do I need to buy the spring separately?

The seal is supplied as a complete assembly with its carbon steel garter spring already fitted; no separate spring purchase is required.

How do I choose between the listed dimensions for the SKF 13568 rotary shaft seal?

The part has a fixed 1.375 in inside diameter, 2 in outside diameter and .313 in width — match those three figures to your shaft and housing bore.

What does the 3480 RPM maximum rotational speed mean once the seal is installed?

It is the highest shaft speed the nitrile lip can sustain at 6.38 m/s surface velocity while staying within the 10 psi pressure limit.

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