Single Lip Nitrile Rotary Shaft Seal (4.25x5.501x0.438 Inch)

Single Lip Nitrile Rotary Shaft Seal (4.25x5.501x0.438 Inch)

Marsoni

M251S

$28.29

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

Single Lip Nitrile Rotary Shaft Seal (4.25x5.501x0.438 Inch)Acrylonitrile 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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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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Love these. My dogs would play ball all day if I let them. These are very durable and bouncy. Love that it’s washable. They would chew up the small “tennis” balls to pieces so I love that they can’t destroy these. My only criticism is I wish these were just a little smaller (like the size of the small Kong tennis balls). My dogs can carry it in their tiny mouths but they can’t get their mouth around it enough to chew it to get the squeaker to squeak, which is their favorite thing.

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Reviewed in the United States on January 5, 2026

Verified Purchase

CA Goose

Louisville, US

★★★★★ 5

Perfect for little dogs

Style: Ultra, Size: Small (2 Pack)

Perfect size for my 13 pound chihuahua mix. Great bounce and quality feel. Definitely worth it.

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Reviewed in the United States on March 26, 2026

Verified Purchase

Amazon Customer

Natrona Heights, US

★★★★★ 5

The perfect ball for a small to medium dog.

Style: Ultra, Size: Small (2 Pack)

My dog's favorite ball. Perfect size for playing catch and return for a small dog. She loves to chew on the ball. Very durable she has not been able to shred the ball. A great entertainment value. This ball does not squeak.

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Reviewed in the United States on February 27, 2026