Anonymous
Apr 16, 2026
Rating: 5/5
Perfect for my drone build
These bearings are incredibly smooth. I used the 3mm bore size for my motor mounts and the performance is noticeable. Genuine NSK quality as expected.
Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | NSK |
| Country of Origin | Japan |
| Material | Chrome Steel (GCr15) |
| Outer Diameter | 10 mm |
| Bore Diameter | 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm |
| Bearing Type | Miniature Deep Groove Ball Bearing |
| Precision Class | ABEC-1 (ISO P0) |
| Seal Type | Open, ZZ, or 2RS Available |
| Lubrication | Pre-lubricated with Grease |
| Typical Applications | RC Models, Robotics, Precision Instruments |
Anonymous
Apr 16, 2026
Rating: 5/5
Perfect for my drone build
These bearings are incredibly smooth. I used the 3mm bore size for my motor mounts and the performance is noticeable. Genuine NSK quality as expected.
Anonymous
Mar 27, 2026
Rating: 5/5
Great variety of sizes
Ordered multiple bore sizes for different prototypes. All arrived well-packaged and protected from rust. Will order again for future projects.
Anonymous
Mar 12, 2026
Rating: 5/5
Genuine NSK quality
Verified authentic packaging and engraving. The runout is minimal which is critical for my precision project. Highly recommend this seller.
Anonymous
Feb 23, 2026
Rating: 4/5
Good but tight fit
The bearings are high quality, but the 5mm bore was a very tight fit on my shaft. Needed slight polishing. Otherwise, they spin very fast without noise.
Anonymous
Jan 31, 2026
Rating: 5/5
High RPM capable
Running these at approximately 20,000 RPM in a spindle application. No heat buildup or vibration after an hour of continuous use. Excellent product.
Q: Can I select the specific bore size during checkout?
A: Yes, please select your required bore size from the variation dropdown menu on the product page before adding to cart.
Q: What is the warranty period for these bearings?
A: We offer a 30-day return policy for defects. Manufacturer warranty applies according to NSK standard terms for industrial components.
Q: Do these come pre-lubricated or do I need to add oil?
A: They come pre-lubricated with standard grease. You can add oil if your specific application requires lower friction, but grease is recommended for longevity.
Q: Are these bearings authentic NSK products?
A: Yes, all our bearings are sourced directly from authorized distributors and are 100% genuine Japan NSK products.
Q: What is the maximum RPM for the 1mm bore size?
A: Maximum RPM depends on load and lubrication, but generally, miniature bearings of this size can handle up to 30,000 RPM under light load conditions.