10pcs JARBLUE R-Series Inch Miniature Ball Bearings ZZ

JARBLUE R-Series Miniature Deep Groove Ball Bearings – 10-Pack

Upgrade your machinery, RC models, skateboards, or precision equipment with these JARBLUE R-Series Miniature Deep Groove Ball Bearings. Engineered from high-grade Chrome Steel (GCr15 Bearing Steel), these compact inch-size bearings deliver smooth, low-friction rotation and long-lasting durability across a wide range of applications.

Available in a comprehensive range of R-Series sizes — including R1-5ZZ, R2, R2A, R3, R3A, R4, R4A, R6, R133, R144, R155, R156, R166, R168, R188, R1038, R1212, R1810, ZZ — you'll find the exact bearing you need for your project. Each pack contains 10 pieces, giving you spares on hand for maintenance or multi-unit builds.

Key Features

• Material: Chrome Steel (GCr15 Bearing Steel) for exceptional hardness and wear resistance
• Precision Rating: P0–P6 / ABEC1–ABEC7 for reliable, accurate performance
• Structure: Miniature Deep Groove Ball Bearing — ideal for radial and moderate axial loads
• Certifications: CE & RoHS certified; no high-concern chemicals
• Seal Options: Optional seal types available (ZZ metal shielded options included in range)
• Customizable: Custom sizing available upon request
• Quantity: 10 pieces per pack
• Made in China

Compatible Applications

• RC cars, drones, and hobby models
• Skateboards, inline skates, and fidget spinners
• Small electric motors and gearboxes
• Medical devices, robotics, and precision instruments
• 3D printers and CNC machinery

Specifications at a Glance

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Frequently Asked Questions

Q: What R-Series bearing sizes are included in this listing?

A: This listing covers a wide range of inch-size R-Series deep groove ball bearings including R1-5ZZ, R2, R2A, R3, R3A, R4, R4A, R6, R133, R144, R155, R156, R166, R168, R188, R1038, R1212, and R1810 ZZ. Please refer to the main product photo for exact dimensional specifications of each size.

Q: What material are these JARBLUE bearings made from?

A: These bearings are manufactured from Chrome Steel (GCr15 Bearing Steel), a high-carbon chromium alloy steel widely used in precision bearing production for its excellent hardness, wear resistance, and fatigue strength.

Q: What does the ZZ designation mean on these bearings?

A: The "ZZ" designation indicates that the bearing is fitted with metal shields on both sides, protecting the internal components from dust and debris while retaining lubrication — making them ideal for high-speed or moderately contaminated environments.

Q: Are these bearings suitable for RC cars and hobby applications?

A: Absolutely. JARBLUE R-Series miniature inch bearings are a popular choice for RC cars, drones, skateboards, 3D printers, and other hobbyist or precision mechanical applications due to their compact size, consistent tolerances, and smooth operation.

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.