Attributes

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

5 reviews

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.

5 FAQ

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.

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