Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material	Chrome Steel SAE 52100
Precision Rating	ABEC-7
Seal Type	Double Shielded (ZZ)
Cage Material	Steel Ribbon
Lubrication	Pre-lubricated High-Speed Grease
Inner Diameter Options	2.3, 3, 4, 6, 7, 8, 9, 10 mm
Surface Finish	Polished Raceways
Max RPM	Up to 30,000 RPM
Temperature Range	-20°C to +120°C
Package Quantity	50 Pieces Assorted

5 reviews

Anonymous

Mar 14, 2026

Rating: 5/5

Exact sizes as described

Needed specific miniature sizes and this kit had them all. Very satisfied with the precision.

Anonymous

Mar 10, 2026

Rating: 4/5

Good quality, tight fit

Quality seems high. The 2.3mm size was a bit tight but settled in after use. Good value for the variety.

Anonymous

Mar 05, 2026

Rating: 5/5

Perfect for my drone project

These bearings fit perfectly in my custom drone build. The high-speed rating is accurate and they run very smoothly.

Anonymous

Feb 25, 2026

Rating: 4/5

Solid kit overall

Good variety of sizes. Would prefer more of the 6mm size but overall good value for money.

Anonymous

Feb 09, 2026

Rating: 5/5

Smooth operation

Very smooth spinning right out of the box. Great for small motors and hobby applications.

5 FAQ

Q: What type of lubricant is pre-applied?

A: We use a high-speed synthetic grease suitable for the stated temperature range.

Q: Can I use these for skateboard wheels?

A: These are miniature bearings designed for small motors and drones, not standard skateboards.

Q: Do you offer bulk discounts for this kit?

A: Yes, please contact our sales team directly for bulk order pricing options.

Q: Are these bearings made of stainless steel?

A: No, these are made from Chrome Steel SAE 52100 for maximum durability and speed.

Q: Is the 2.3mm inner diameter actually available?

A: Yes, the full model range includes the 2.3mm inner diameter size as listed.

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