Attributes

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

5 reviews

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.

5 FAQ

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.

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