Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand	NMB (MinebeaMitsumi)
Series	MR Series
Material	Chrome Steel (SAE 52100)
Bore Diameter	1 mm - 10 mm
Precision Class	ABEC 7 / ISO Class 2
Cage Type	Wire Cut (High Speed)
Lubrication	Pre-lubricated with Low Noise Grease
Seal Type	Open / ZZ (Double Shield)
Country of Origin	Japan
Primary Application	Robotics, Drones, Precision Instruments

5 reviews

Anonymous

Apr 17, 2026

Rating: 5/5

Genuine NMB quality

Packaging was secure and each bearing was individually wrapped. Measured the bore with calipers and it is within precise tolerance.

Anonymous

Mar 03, 2026

Rating: 5/5

Exact specifications met

Used these for a precision spindle assembly. The runout is minimal and the build quality is exactly what you expect from NMB.

Anonymous

Feb 10, 2026

Rating: 4/5

Great bearings, slight shipping delay

Performance is top notch and noise levels are very low. Only giving 4 stars because customs held the package for a few extra days.

Anonymous

Feb 08, 2026

Rating: 5/5

Low noise operation

Very quiet under load compared to generic brands. Worth the extra cost for high-speed applications where vibration matters.

Anonymous

Jan 29, 2026

Rating: 5/5

Perfect for my drone project

These bearings are incredibly smooth. The wire-cut cage really helps with high RPM stability. Shipping from Japan was faster than expected.

5 FAQ

Q: What type of lubricant is pre-applied?

A: They come pre-lubricated with a standard low-noise synthetic grease suitable for high-speed operations.

Q: Are these genuine NMB bearings?

A: Yes, all our bearings are directly imported from NMB Japan and come with authentic packaging.

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

A: Please contact our sales department directly for volume pricing on bulk orders exceeding 100 units.

Q: What is the tolerance range for the 5mm bore size?

A: The 5mm bore follows ISO Class 2 standards, typically ranging within 0 to -5 micrometers.

Q: Can these handle continuous high RPM?

A: Yes, the MR Series wire-cut cage is specifically designed to maintain stability at high rotational speeds.

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