57509 Double Lip Nitrile Rotary Shaft Seal (5.75x6.751x0.5 Inch)

57509 Double Lip Nitrile Rotary Shaft Seal (5.75x6.751x0.5 Inch)

Marsoni

M251S

$49.97

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

57509 Double Lip Nitrile Rotary Shaft Seal (5.75x6.751x0.5 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. SKF 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 SKF range of CR

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This completely exceeded my expectations! My dog is roughly a year old, about 110-115lbs and a TOUGH chewer. He loved tugs toys but none of them last more than 10 minutes with him. I decided to try this because of the other reviews and price but wasn’t expecting it to last long. He’s had it almost a week and it’s still completely intact. It’s definitely heavy so it might not be best for smaller dogs but if you have a big dog/heavy chewer definitely give this a shot!

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Reviewed in the United States on May 16, 2026

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Lisa A

Waukegan, US

★★★★★ 5

Indestructible so far

Color: Red, Color: Red

My toy destroyer has had this for almost two months now and it hasn’t taken any damage. It is big and heavy and solid. It became one of his favorites immediately and goes in and out of the house and even to bed with him. Now if only we could find a stuffy that he can’t destroy.

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Reviewed in the United States on May 23, 2026

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Linda H.

Whiting, US

★★★★★ 3

MY DOG'S AREN'T INTERESTED ...

Color: Red

This is a large, heavy, hard rubber toy, so is of high quality. However, it is SO heavy that neither my 60-lb. female Boxer nor my 80-lb. male Bully will 'play' with it at all. They don't even chew on it. So, although it would probably be pretty indestructible, I have no way to verify that, since neither of my dogs show any interest at all. I've tried encouraging them, by holding on one end of it and encouraging them to grab the other end, but even that didn't work. Perhaps a much larger 'giant' breed dog would enjoy it.

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Reviewed in the United States on February 7, 2026

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Marcus Schilreff

Los Angeles, US

★★★★★ 5

Tough chewer for sure

My dog destroys toys. These are amazing, she chewys on them tell she's a slobbery mess. And they are holding strong. Glad a found these!

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Reviewed in the United States on February 10, 2026

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Carol Roeder

Waukegan, US

★★★★★ 5

Fantastic toy for aggressive chewiers!

I have bought two of these for my granddaughters three dogs and they love them! In fact, I only bought one to see if they would, and all 3 played with it! One is a 5 year old pit mix, one is a 9 mo. lab mix, and ine is a 10 year old shepherd mix! Miss Lab goes through toys like melting ice, so they reall have to be well made. Not even Kong toys have made it with her! All three dogs have made it squeak, which we didn't know it did! If you have an aggressive chewier, this is the toy you need to put in the #1 spot on your list to buy!

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Reviewed in the United States on January 28, 2026