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SACKORANGE

20 PCS MR63ZZ Deep Groove Double Shielded Ball Bearings - 3x6x2.5mm Micro Bearings for 3D Printers, Electric Motors, Home Appliances, Garden Machiner (MR63-ZZ)

  • Based on 202 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jul 24
Order within 19 hours and 56 minutes
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Size: MR63-ZZ


Number of Items: 20


Features

  • Compact Size: Measuring 3mm (I.D.) x 6mm (O.D.) x 2.5mm (thickness), these miniature bearings are perfect for small-scale applications where space is limited.
  • Double Shielded Design: These bearings feature double shields to protect against dust and debris, extending their service life and maintaining optimal performance in various environments.
  • High-Quality Chrome Steel: Made from durable chrome steel, these bearings offer excellent strength, hardness, and wear resistance, making them ideal for handling significant radial and axial loads.
  • Precision Engineering: Manufactured with lower tolerances, these bearings ensure smoother rotation, reduced friction, and reliable performance in high-speed applications.
  • Versatile Applications: Perfect for electric motors, RC cars, skateboards, inline skates, 3D printers, home appliances, and garden machinery, providing compact and efficient solutions for small-scale mechanical needs.

Description

The 20 PACK MR63ZZ Micro Deep Groove Ball Bearings are precision-engineered, double-shielded bearings designed for compact and efficient performance. With an inner diameter of 3mm, outer diameter of 6mm, and thickness of 2.5mm, these miniature bearings are ideal for small-scale applications such as 3D printers, electric motors, RC cars, skateboards, home appliances, and garden machinery. Crafted from high-quality chrome steel, these bearings offer exceptional durability, strength, and wear resistance, ensuring reliable performance even under high loads and speeds. The double-shielded design provides excellent protection against dust and debris, maintaining smooth operation and extending the bearings' lifespan. Whether you're upgrading your 3D printer, repairing home appliances, or working on RC models, these bearings deliver precision and efficiency. This 20-pack provides excellent value, ensuring you have spares for multiple projects or replacements. Choose the MR63ZZ Micro Deep Groove Ball Bearings for compact, reliable, and high-performance solutions in your mechanical applications.

Brand: SACKORANGE


Material: Alloy Steel


Bearing Number: MR63ZZ


Item Thickness: 2.5 Millimeters


Outside Diameter: 6 Millimeters


Brand Name: SACKORANGE


Bearing Number: MR63ZZ


Part Number: SA-MR63-ZZ-20


Manufacturer: SACKORANGE


Included Components: bearing


Item Thickness: 2.5 Millimeters


Outside Diameter: 6 Millimeters


Material Type: Alloy Steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 24

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

    • Smooth, precise fit for Bambu X1C AMS rollers Smooth, precise fit for Bambu X1C AMS rollers
Size: 693-ZZ Number of Items: 10
Review Image by Ynot Tech
Review Image by Ynot Tech
These bearings work exactly as expected and fit perfectly snug on my Bambu X1C AMS rollers. Installation was straightforward, and all bearings in the pack were consistent in size and finish. They spin smoothly right out of the box with no grinding or play. The double-shielded design is especially useful in a 3D-printing environment, helping keep out dust and fine filament debris that can accumulate over time. After installation, the rollers move freely and evenly, with no added noise or resistance. Fit and performance matched the listed specifications. Maintenance tip: For best long-term performance, avoid over-lubricating. These bearings are pre-greased; if maintenance is needed later, a very small amount of light machine oil is sufficient. Periodic inspection and gentle cleaning will help extend service life, especially in dusty print enclosures. Overall, these are solid, well-made bearings that do what they’re designed to do. Five stars. ... show more
Reviewed in the United States on December 12, 2025 Reviewed in the United States on December 12, 2025 by Ynot Tech
    • Good bearings !
Size: R188ZZ Number of Items: 20
Work great. Fair price !
Reviewed in the United States on April 9, 2026 by Geno Bartley
    • Great Replacement Bicycle Pedal Bearings
Size: MR128-2RS Number of Items: 10
My bicycle pedals spin better than my highest expeditions with these bearings. I can't attest to durability but at this price point its worh the risk.
Reviewed in the United States on April 1, 2026 by TheAmazonUser-friendly
    • Very smooth bearings.
Size: MR63-ZZ Number of Items: 10
Right size that I needed fits great very smooth bearings seems to be a very durable product great performance for my RC helicopter.
Reviewed in the United States on May 12, 2026 by Jamie Willis
    • Good Quality Bearings
Size: 693-ZZ Number of Items: 20
Worked well for my robotics application
Reviewed in the United States on April 19, 2026 by M/G
    • Good little bearing
Size: MR63-ZZ Number of Items: 10
Size is accurate. Great for repair or retrofit
Reviewed in the United States on March 2, 2026 by chappy
    • Great value compared to name branded bearings!
Size: MR128-2RS Number of Items: 20
Same size for my Hobbyplus Arktos & Terranaut 8x8 and they are cheaper and better than the stock bushings in my RC trucks. MR128-2RS worked for me and MR63-ZZ. Great same bearings and a better value!
Reviewed in the United States on February 23, 2026 by Jose M.
    • Smooth running
Size: MR128-2RS Number of Items: 20
Very happy with how smooth such small bearings run.
Reviewed in the United States on March 21, 2026 by corridor5

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