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Donepart 20-Pack R4-2RS Bearings, ID 1/4 x OD 5/8 x 0.196 inch Small Ball Bearings, Double Sealed, High-Precision, Long-Lasting Miniature Bearings for Smooth Operation in 3D Printers, RC Vehicles etc

  • Based on 47 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Saturday, Oct 18
Order within 21 hours and 48 minutes
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Features

  • [Universal Compatibility] With an inner diameter of 1/4, outer diameter of 5/8, and thickness of 0.196, these bearings fit perfectly in various equipment like 3D printers, RC cars, skateboards, and more.
  • [Designed for Ease of Installation]: Donepart r4-2rs bearing with standardized dimensions ensure hassle-free installation, whether youre a hobbyist or a professional technician.
  • [Precision Engineering for Smooth Performance]: Manufactured with tight tolerances to ensure seamless operation, these bearings size: 1/4 x 5/8 x 0.196 inch, provide consistent and quiet rotation for precision projects
  • [Reliable Double Sealed Protection]:The dual rubber seals small ball bearings effectively, prolonging the lifespan of the bearings and reducing maintenance needs.
  • [Enhanced Durability for Long-Term Use]: Donepart r4-2rs ball bearings made from premium-grade steel, built to last, offering exceptional resistance in challenging environments.

Brand: Donepart


Material: Alloy Steel


Item dimensions L x W x H: 0.25 x 0.2 inches


Bearing Number: R4-2RS


Item Thickness: 0.2 Inches


Date First Available ‏ : ‎ May 8, 2020


Manufacturer ‏ : ‎ Donepart


Best Sellers Rank: #91,370 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #481 in Deep-Groove Ball Bearings


#481 in Deep-Groove Ball Bearings:


Customer Reviews: 4.5 4.5 out of 5 stars 47 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • I use these to do props for my model airplanes for a wind vein
These were great for model airplanes for wind dejection on the prop
Reviewed in the United States on September 25, 2025 by Jane

  • Good bearings
Smooth rolling. The size is as expected.
Reviewed in the United States on April 20, 2025 by GingerNerd

  • Received
Size is small but it will work. For the value and cost, it will function as needed. It spins well.
Reviewed in the United States on September 4, 2025 by Daryl Jones

  • High quality bearings for 1/10 rc cars
These bearings fit right on my Traxxas slash/ bmod. The size is the common size for most 1/10 cars. Super smooth and they haven't worn after 30 races, so I'm pretty happy overall. I also like the package they come in as it makes keeping the bearing organized in my parts bag.
Reviewed in the United States on March 3, 2025 by Peekablue

  • Would work
Not for bicycle wheel
Reviewed in the United States on September 13, 2025 by Tony Harris

  • Good choice for light load need, sealed for a harsh enviroment.
Inner bore and outer race have good finish quality. Flat faces are smooth finish. Very low drag noticed from seals. Rotation of race is consistent and smooth.
Reviewed in the United States on February 28, 2025 by Gary & Nancy Gary & Nancy

  • Does the Job
I use these bearings with some 3D parts that I print. They are true to size and glide smoothly. The packaging is minimal, but I like that as they don't take up much space in my parts drawer and I can keep them dust-free in their package.
Reviewed in the United States on February 4, 2025 by T. Culler

  • Just as described
I ordered these for a project and they arrived quickly and in two little tubes, they work great. The only reason I didn't give 5 stars is one(1) bearing was missing a side shield. If I could give 4.9 stars I would.
Reviewed in the United States on June 23, 2025 by Happy Purchaser

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