Anonymous
Mar 22, 2026
Rating: 5/5
Highly Recommend
Using these for PC fans. Very quiet operation and seems durable so far.
Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | NSK / NMB |
| Model Number | MR52ZZ / L-520ZZ |
| Bore Diameter | 2 mm |
| Outer Diameter | 5 mm |
| Width | 2.5 mm |
| Material | Chrome Steel |
| Shield Type | Double Metal Shield (ZZ) |
| Precision Class | ABEC-1 |
| Package Quantity | 10 Pieces |
| Country of Origin | Japan / Thailand |
Anonymous
Mar 22, 2026
Rating: 5/5
Highly Recommend
Using these for PC fans. Very quiet operation and seems durable so far.
Anonymous
Mar 19, 2026
Rating: 4/5
Good Value
One bearing felt slightly stiff but the rest were perfect. Good price for genuine NSK.
Anonymous
Feb 23, 2026
Rating: 5/5
Smooth Spin
Great for my drone build. Very smooth out of the box and fit perfectly on the 2mm shaft.
Anonymous
Jan 31, 2026
Rating: 5/5
Perfect Size
Fits my 2mm shaft exactly. No wobble and runs very quietly under load.
Anonymous
Jan 24, 2026
Rating: 5/5
Genuine Product
Verified authentic NSK. Fast shipping too. Will use these for all my RC cars.
Q: What is the max RPM?
A: Rated for up to 30,000 RPM depending on load and lubrication.
Q: Are these sealed or open?
A: These are ZZ shielded on both sides, not fully sealed but protected from dust.
Q: Can I wash these with solvent?
A: Yes, but please note that washing may remove factory lubrication.
Q: Is this sold as a single unit?
A: No, the price listed is for a pack of 10 pieces.
Q: Do you ship internationally?
A: Yes, we ship to most countries. Please check checkout for rates.