Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand	NMB Technologies
Country of Origin	Japan
Material	High-Carbon Chrome Steel
Seal Type	ZZ (Dual Metal Shield)
Precision Grade	ABEC-7 Equivalent
Cage Material	Wire-Cut Steel
Lubrication	High-Speed Synthetic Grease
Noise Rating	Low Noise (Z1)
Available Sizes	623, 624, 625, 626, 627, 628, 629
Application	RC Models, Drones, Machinery

5 reviews

Anonymous

Apr 16, 2026

Rating: 5/5

High speed performance

Using these on my drone motors. They handle high RPMs without overheating. Very satisfied with the purchase.

Anonymous

Mar 11, 2026

Rating: 4/5

Good quality, fast shipping

Works well on my 3D printer axes. One bearing felt slightly stiffer than the others but still functional.

Anonymous

Mar 05, 2026

Rating: 5/5

Genuine Japanese import

Packaging confirmed authentic NMB product. Precision is noticeable compared to generic brands.

Anonymous

Feb 21, 2026

Rating: 4/5

Great value for bulk

Bought a set for my machinery repair. Most are perfect, one had minor shield imperfection but works fine.

Anonymous

Jan 28, 2026

Rating: 5/5

Perfect for my RC car

These bearings run incredibly smooth. Noticed a significant increase in wheel spin duration. Genuine NMB quality.

5 FAQ

Q: Do you offer bulk discounts for orders over 100 units?

A: Yes, please contact our sales team directly for bulk pricing on orders exceeding 100 units.

Q: Is the ZZ seal removable for cleaning?

A: The ZZ metal shields are non-removable to maintain precision and protect internal components.

Q: Do these come pre-lubricated?

A: Yes, they come pre-lubricated with high-speed synthetic grease suitable for most applications.

Q: Are these bearings suitable for high RPM drone motors?

A: Yes, these are designed for high-speed applications and are commonly used in drone motor setups.

Q: What is the exact precision grade of these bearings?

A: These bearings meet ABEC-7 equivalent precision standards, ensuring smooth operation.

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