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.
Description
Reviews
| 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 |
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.
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.