10pcs Miniature Ball Bearings MR52ZZ–MR105ZZ Metal Shield
10pcs Miniature Ball Bearings MR52ZZ–MR105ZZ Metal Shield
Details
JARBLUE Miniature Metal Shield Ball Bearings — 10-Pack
Upgrade your precision projects with these high-quality miniature double-shielded ball bearings from JARBLUE. Available in a wide range of sizes — MR52ZZ, MR63ZZ, MR74ZZ, MR84ZZ, MR85ZZ, MR95ZZ, MR105ZZ, and more — these compact bearings are engineered for smooth, low-friction rotation in RC cars, 3D printers, robotics, drones, fidget spinners, and other miniature mechanical applications.
Made in Mainland China.
Key Features
- Material: Premium bearing steel for long-lasting durability and consistent performance
- Double Metal Shield (ZZ): Protects internal ball and race surfaces from dust, debris, and contaminants
- ABEC Grade 3: Manufactured to ABEC 3 precision standards for reliable, consistent tolerances
- Wide Size Range: Covers MR52ZZ through MR149ZZ — choose the exact size you need
- Pack of 10: Great value with 10 bearings per order, ideal for projects requiring multiple units
- Compact & Lightweight: Miniature form factor fits tight spaces in models, hobby builds, and mechanical assemblies
- Pre-lubricated: Factory-greased for immediate use right out of the box
Specifications
| Brand | JARBLUE |
| Material | Bearing Steel |
| Shield Type | Double Metal Shield (ZZ) |
| Grade | ABEC 3 |
| Available Sizes | MR52ZZ, MR63ZZ, MR74ZZ, MR84ZZ, MR85ZZ, MR95ZZ, MR105ZZ (MR52ZZ–MR149ZZ range) |
| Quantity | 10 Pieces |
| Customizable | Yes |
| Country of Origin | Mainland China |
Common Applications
- 3D printers and CNC machines
- RC cars, trucks, and drones
- Robotics and automation components
- Fidget spinners and hobby models
- Small electric motors and fans
- DIY mechanical projects and repairs
Related Products You May Like
- 10pcs Durable Gold Blade Nut Metal Universal Trimmer Accessories Anti-Loosening Replacement Parts
- 10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips
- 10pcs 2-Pin Spring Wire Connectors – Quick Splice Lock Terminals
Learn more: OSHA on personal protective equipment
Frequently Asked Questions
Q: What does "ZZ" mean in the miniature bearing model number?
A: "ZZ" indicates that the bearing has double metal shields on both sides. These shields protect the internal balls and raceways from dust, dirt, and debris, helping to maintain smooth operation over time without the need for frequent cleaning.
Q: What sizes are available in this miniature ball bearing set?
A: These JARBLUE miniature bearings are available across the MR52ZZ to MR149ZZ size range, including popular models such as MR52ZZ, MR63ZZ, MR74ZZ, MR84ZZ, MR85ZZ, MR95ZZ, and MR105ZZ. Select the size that matches your specific application when ordering.
Q: Are these bearings pre-lubricated and ready to use?
A: Yes. Each bearing comes factory-greased and is ready for immediate installation. The double metal shield helps retain the lubricant and keeps the internals protected during use.
Q: What is ABEC Grade 3 and why does it matter?
A: ABEC (Annular Bearing Engineers' Committee) Grade 3 indicates the bearing meets a standardized level of dimensional accuracy and geometric tolerances. For hobby, model, and light industrial applications, ABEC 3 provides a reliable balance of precision and cost-effectiveness.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.
Materials + Care
We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.
Shipping + Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.