Description
Reviews
| 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 |
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.
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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