10pcs 681ZZ Miniature Ball Bearings 1.5x4x2mm ABEC-3 Metal Sealed

JARBLUE 681ZZ Precision Miniature Ball Bearings – 10-Pack

Upgrade your builds with these JARBLUE 681ZZ (681XZZ / L415ZZ) precision miniature ball bearings. Engineered to ABEC-3 tolerance standards, these compact 1.5x4x2mm bearings deliver smooth, consistent rotation in tight spaces — perfect for RC models, toys, hobby projects, motors, and small mechanical assemblies.

Key Features

• ABEC-3 Precision Rating – Tight dimensional tolerances for reliable, consistent performance in demanding miniature applications
• Double Metal Shields (ZZ) – Protect internal components from dust and debris, extending bearing life without adding bulk
• Bearing Steel Construction – High-grade bearing steel offers excellent durability, load capacity, and resistance to wear
• Ultra-Compact Dimensions – 1.5mm bore × 4mm OD × 2mm width; ideal for space-constrained mechanical designs
• Versatile Compatibility – Compatible model numbers 681ZZ, 681XZZ, and L415ZZ for broad cross-reference use
• Value Pack – 10 bearings per order to keep your workshop well-stocked

Specifications

Common Applications

• RC cars, drones, and hobby aircraft
• Toy mechanisms and spinning tops
• Miniature motors and fans
• 3D printer axes and carriages
• Small robotics and automation components

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Frequently Asked Questions

Q: What does the "ZZ" designation mean on 681ZZ miniature bearings?

A: The "ZZ" suffix indicates the bearing is fitted with double metal shields on both sides. These shields protect the internal balls and raceways from dust and light debris, helping to maintain smooth rotation and extend the working life of the bearing without significantly increasing its dimensions.

Q: Are the 681ZZ, 681XZZ, and L415ZZ model numbers interchangeable?

A: Yes — 681ZZ, 681XZZ, and L415ZZ are cross-reference designations for the same bearing size (1.5×4×2mm). They are used interchangeably across different manufacturers and industries, so this 10-pack is compatible with any application calling for any of these model numbers.

Q: What is the ABEC-3 precision rating and why does it matter?

A: ABEC-3 is a standardized tolerance grade set by the Annular Bearing Engineers' Committee. It ensures the bearings meet specific dimensional accuracy requirements, resulting in consistent fit, reduced vibration, and smooth rotation — qualities that are especially important in small, high-speed hobby and toy applications.

Q: How many bearings are included in this listing?

A: Each order includes 10 pieces of the 681ZZ (L415ZZ / 681XZZ) miniature metal sealed ball bearings, giving you a ready supply for multiple projects or replacements.

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.