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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
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Description
6311DDU NSK Sealed Deep Groove Ball Bearing 55x120x29mmNSK Pressed Steel Cages Single row deep groove ball bearings are the most common type of rolling bearings. Their use is very widespread. In addition to open type bearings, these bearings often have steel shields or rubber seals installed on one or both sides and are prelubricated with grease. Also, snap rings are sometimes used on the periphery. As to cages, pressed steel ones are the most common. For big deep groove ball bearings, machined brass
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.8 ★★★★★
Based on 1448 reviews
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Product Reviews
★★★★★ 5
A bit flimsy but just as good as name brand chuck it
A bit flimsy but just as good as the name brand chuck it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2026
★★★★★ 4
Good
exactly as expected
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Reviewed in the United States on June 8, 2025
★★★★★ 2
Not worth it
Very colorful and my poodle liked the ball. It didn’t last 1 week. Horrible quality and not worth the money. My dog destroyed ball as soon as I turned my back. Would return it if it was in a returnable condition
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Great buy
Our dog is so happy about this. He loves chasing a ball. We also love the fact that it is collapsible and only 12 inches. We travel a lot so it’s perfect for that. I’m enclosing a movie. I did about it for Amazon.
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Reviewed in the United States on February 10, 2026
★★★★★ 1
Very disappointed
Unfortunately I ended up being very disappointed with this purchase, after about two weeks of use, it just stopped performing. Not sure what happened but it just stopped releasing the ball and I don't know why, it had no flexibility left to it. I'm not doing a very good job of trying to explain why it quit working but suffice it to say, it became useless after a couple of weeks. Broke my neighbors dog's heart, lol.
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Reviewed in the United States on November 20, 2025
