SKU: 39070997707

MR84ZZ Shielded Miniature Ball Bearing 4x8x3mm 4mm ID

Sale price$118.35 Regular price$131.50
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

MR84ZZ Shielded Miniature Ball Bearing 4x8x3mm 4mm IDMR84ZZ Shielded Miniature Ball Bearing Chrome Steel 4x8x3mm with Dual Shields The MR84ZZ is a compact deep groove ball bearing built from durable chrome steel, offering long service life and smooth performance. It comes with double metal shields (ZZ) that help protect against dust and keep the grease sealed in, making it ideal for high speed, space limited applications. Type: Deep groove ball bearing Model: MR84ZZ Material: Chrome steel (52100 alloy

MR84ZZ Shielded Miniature Ball Bearing
✔️ Chrome Steel - 4x8x3mm with Dual Shields

The MR84ZZ is a compact deep groove ball bearing built from durable chrome steel, offering long service life and smooth performance. It comes with double metal shields (ZZ) that help protect against dust and keep the grease sealed in, making it ideal for high-speed, space-limited applications.

✅ Type: Deep groove ball bearing
✅ Model: MR84ZZ
✅ Material: Chrome steel (52100 alloy steel)
✅ Closure: Double metal shields (ZZ)
✅ Lubrication: Pre-lubricated with grease
✅ Inner diameter: 4mm
✅ Outer diameter: 8mm
✅ Width: 3mm
✅ Size: 4 × 8 × 3 mm
✅ Dynamic load rating (Cr): 400 N
✅ Static load rating (Cor): 140 N
✅ Limiting speed (grease): 61,000 RPM
✅ Quantity: 1 bearing

💡 Why use shielded miniature ball bearings?
They’re a practical solution for high-speed and compact systems.

  • Shields keep contaminants out and reduce maintenance

  • Pre-greased for immediate use in small devices

  • Handy for drones, robotics, medical equipment, and hobby applications

If you’re after a reliable miniature bearing for fast and precise movement, the MR84ZZ shielded option is a tough and dependable choice.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 39070997707

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4.8 ★★★★★
Based on 265 reviews
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Pamela S
Chelsea, US
★★★★★ 4
Offers Complete Privacy
Color: Black, Size: 132in-Large Metal Base
We tried others that were nice but this particular room divider adds total privacy. We were looking for that. Easy to assemble. There is no gap if you position each petition close enough. The guality is very nice. Exactly what we were looking for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 24, 2025
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Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 5
Good Product
Size: 3 Panel-102'', Color: Beige
I got these dividers for outdoor use for some privacy from neighbors. They arrived quickly and were easy to set up. They look good, and though the legs don’t offer stability against any amount of wind—which I expected as it wasn’t advertised for outdoor use—all it took was placing a cinder block on the feet to hold it up right. Coverage is good, it’s easy to fold and move as needed, and it’s light weight. All in all a decent product. I will caution the purchase of “used like-new,” as both of the dividers I ordered were previously returned items, and one came missing a cap, instructions were not included, and the poles were all mixed up and not properly labeled. If I had not ordered a second divider (which did include the instructions) I would have had a much harder time figuring out which pieces were which and how to put them together.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2025
J
Verified Purchase
julie h.
Pawtucket, US
★★★★★ 5
So versatile! Perfect solution for dividing a room.
Size: 4 Panel-88'', Color: Grey, Size: 4 Panel-88'', Color: Grey
Perfect solution for my space. My office has to double as the hangout room for the kids and I wanted something that would block off my computer so it is left alone. This space allows me to close off my computer as much or as little as I want. It is lightweight yet has sturdy feet. This is important so that if it gets bumped it won’t topple over. The price was great and the build time wasn’t too bad! I would recommend two people for set up. I went with the grey panels and I think I’ll end up hanging some twinkle lights at some point. Great purchase!
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Reviewed in the United States on October 9, 2025
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Verified Purchase
Abbi
Battle Creek, US
★★★★★ 4
4/5 Stars
Size: 4 Panel-88'', Color: Black
Very tall and easy to set up, the only thing I will say is that they do have large gaps in between, so you won't have 100% privacy unless you add a curtain in the back. Other than that, they are easy to fold, sturdy, and esy to assemble. The gaps are an easy fix so I would say they are worth it.
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Reviewed in the United States on April 16, 2026
T
Verified Purchase
Tyi Campbell
Lowell, US
★★★★★ 5
Great product and worth the money.
Size: 4 Panel-88'', Color: Black
Portable and stable. Perfect size and gives me the privacy I need when working from home. Stability is great as long as you place the stands correctly it won't wobble. I love it.
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Reviewed in the United States on May 8, 2026

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