20x52x7 Single Lip Nitrile Rubber Rotary Shaft Seal

20x52x7 Single Lip Nitrile Rubber Rotary Shaft Seal

Marsoni

M251S

$10.09

Get it in 3 business days with 1 day shipping. Friday, May 29

20x52x7 Single Lip Nitrile Rubber Rotary Shaft SealAcrylonitrile butadiene rubber (NBR) is the material name for nitrile rubber. This material is very good for seals due to its make up. Nitrile rubber can tolerate short term dry running of the sealing lip. The operating temperature range without failure of nitrile rubber is 40 to +100 C. This also offers a special nitrile rubber compound with a temperature range between 55 and +110 C. Please click here for a full in depth look at the range of seals

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Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
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This tool is so easy to use. It comes with a handy holder you can stick on the side of your machine and even replacement needles for the tool itself. I’ve had the tool for over a year now have not had to replace any of the needles! The 3M adhesive on the back of the holder is amazing quality. It won’t come off your machine. The tool itself helps take out the guesswork with your espresso shot, making sure the grounds are evenly distributed before you tamp.

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Reviewed in the United States on December 27, 2024

Verified Purchase

RentonRiggos

Carnegie, US

★★★★★ 3

Very nice but no replacement needles?!?!

The tool looks and feels great. It is very well crafted and packaged. The mount works well (both magnetic and tape). I would rate 5 stars except that it did NOT come with the replacement needles specifically called out in the description.

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Reviewed in the United States on April 19, 2026

Verified Purchase

Nick

Alexandria, US

★★★★★ 5

Good value

I like how it comes with the magnet mount as well as a sticky backed metal piece to use. It has a nice weight to it too, it doesn’t feel cheap.

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Reviewed in the United States on February 6, 2025

Verified Purchase

Suzan

Lowell, US

★★★★★ 5

Get this for your coffee bar

Perfect for your grounded coffee. I attached this to my ninja machine, and this was so good. It is out available for next use. No problems with it falling down.

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Reviewed in the United States on March 8, 2026