10pcs Miniature Deep Groove Ball Bearings 681 681X 682ZZ Set

10pcs Miniature Shielded Deep Groove Ball Bearings – 681 / 681X / 681XZZ / 682ZZ

Upgrade your precision projects with these high-quality miniature deep groove ball bearings made from hardened bearing steel. This pack of 10 covers four popular micro-bearing sizes, making it ideal for hobbyists, engineers, model makers, and small-appliance repair technicians who need reliable, low-friction rotation in tight spaces.

Made in Mainland China.

Available Sizes in This Pack

• 681 – 1 × 3 × 1 mm (open type)
• 681X – 1.5 × 4 × 1.2 mm
• 681XZZ – 1.5 × 4 × 2 mm (double-shielded)
• 682ZZ – 2 × 5 × 2.3 mm (double-shielded)

Key Features

• Premium Bearing Steel Construction – Hardened steel races and balls deliver exceptional durability and long service life even under continuous load.
• Double-Shielded (ZZ) Options – Metal shields on ZZ variants keep lubricant in and dust or debris out, reducing maintenance frequency.
• Ultra-Compact Miniature Design – Engineered for tight, space-constrained assemblies including RC cars, drones, 3D printers, micro-motors, spinners, and optical equipment.
• Smooth, Low-Noise Operation – Precision-ground raceways ensure minimal vibration and quiet, consistent rotation at high RPM.
• Multi-Size Value Pack – 10 bearings across 4 sizes give you the flexibility to tackle multiple applications in one purchase.
• Flexible Wholesale Packaging – Custom quantities and packaging options are available; contact us to discuss bulk pricing tailored to your needs.

Specifications

Common Applications

• RC cars, trucks, and aircraft
• FPV drones and quadcopters
• 3D printer carriages and extruders
• Fidget spinners and desktop gadgets
• Micro-motors, mini-fans, and pumps
• Optical and scientific instruments
• Small household appliances and power tools

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Frequently Asked Questions

Q: What sizes are included in this 10-piece miniature ball bearing pack?

A: The pack includes bearings in four sizes: 681 (1×3×1 mm), 681X (1.5×4×1.2 mm), 681XZZ (1.5×4×2 mm), and 682ZZ (2×5×2.3 mm). This gives you a versatile selection to cover multiple precision assembly needs.

Q: What does "ZZ" mean on these miniature deep groove ball bearings?

A: "ZZ" indicates double metal shielding on both sides of the bearing. These shields help retain internal lubrication and protect the rolling elements from dust and fine particles, extending the bearing's operational life in demanding environments.

Q: Are these bearings suitable for 3D printers and RC models?

A: Yes. The 681XZZ and 682ZZ sizes are particularly popular for 3D printer carriages, extruder shafts, RC car steering assemblies, and drone motor mounts due to their compact dimensions, smooth rotation, and robust bearing steel construction.

Q: Can I order larger quantities or custom packaging?

A: Absolutely. Wholesale and bulk orders are welcome. Custom packaging options are available to suit your specific quantity requirements. Please reach out to our customer service team to discuss pricing and packaging arrangements.

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.