Peerless Industrial Group
Peerless Industrial Group Tire Chains Single Bus & RV V-Bar PK2 QG2821
$67.99
0.00081461BTC
In stock
SKF
SKF 17231 Shaft Seal CRW1 NBR 1.75 x 2.25 x .313 in
Rotary shaft seal with NBR lip, 1.75 in ID × 2.25 in OD × .313 in width, rated to 10 psi and 3,180 RPM for oils, greases and fuels
- ColorTransparent
- Reliable sealing for oils and fuels
- Nitrile rubber lip handles 10 psi pressure
- Carbon steel spring maintains lip contact
- Operates up to 3,180 RPM shaft speed
- 75 in ID fits standard shaft sizes
SKF 17231 CRW1 Shaft Seal
The SKF 17231 is a rotary shaft seal built to CRW1 design code for automotive and industrial engines. It suits mechanics and maintenance teams who need a reliable lip seal for rotating shafts in fluid systems. The nitrile rubber lip handles animal and vegetable oils, diesel, gasoline, greases, hot water, light heating oil and mineral oils. Buyers who need a double-lip design or higher pressure rating should look elsewhere.
Sustained sealing performance
Under continuous rotation the single lip runs at up to 3,180 RPM with a maximum surface speed of 7.36 mps. The carbon steel spring maintains radial force so the seal stays effective during extended duty cycles rather than just brief bursts. Maximum pressure is limited to 10 psi so the seal is intended for low-pressure lubrication or splash environments.
Straightforward press-fit installation
The seal installs by pressing the 2.25 in outside diameter into the housing bore until the acrylic-coated case seats squarely. A 1.75 in shaft diameter and .313 in overall width must match the application exactly or leaks will appear. The most common error is damaging the nitrile lip during insertion so a lubricated installation tool is recommended.
Highlights
- Reliable sealing for oils and fuels
- Nitrile rubber lip handles 10 psi pressure
- Carbon steel spring maintains lip contact
- Operates up to 3,180 RPM shaft speed
- 75 in ID fits standard shaft sizes
Specifications
| Brand | SKF |
|---|---|
| Color | Transparent |
Questions about this item
How hot does the 17231 seal get when the shaft runs at 3,180 RPM all day?
The seal is rated for a maximum surface speed of 7.36 mps at 3,180 RPM; heat rise depends on the shaft finish, lubrication and ambient temperature in your application.
What shaft diameter and housing bore must I already have for the 1.75 in ID and 2.25 in OD seal to fit?
You need a 1.75 in shaft and a 2.25 in housing bore; the seal's 0.313 in width must also match your gland depth.
Will the NBR lip on this 17231 seal handle the mineral oil and gasoline residue left by my older engine?
Yes, the nitrile rubber lip is compatible with mineral oils, gasoline, diesel, greases, animal and vegetable oils, and hot water up to 10 psi.
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