Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand	NSK
Country of Origin	Japan
Material	High-Carbon Chromium Steel
Seal Type	Metal Shield (ZZ)
Precision Class	ISO Class 0 (ABEC-1)
Cage Material	Pressed Steel
Lubrication	Pre-greased
Bearing Series	6000 Deep Groove
Load Capacity	Radial and Axial
Warranty	1 Year Manufacturer

5 reviews

Anonymous

Apr 12, 2026

Rating: 5/5

Smooth rotation out of the box

Bought the 6004 size for a project car alternator. Spin is buttery smooth with no grit. Will purchase again for future maintenance needs.

Anonymous

Feb 15, 2026

Rating: 5/5

Genuine Japanese product

Verified the markings on the bearing. These are authentic NSK units. Important to get real ones for high-speed applications to avoid premature failure.

Anonymous

Feb 10, 2026

Rating: 5/5

Perfect for CNC spindle repair

Ordered the 6002 size for my lathe spindle. The runout is minimal and operation is very smooth. Genuine NSK quality as expected from Japanese imports.

Anonymous

Feb 06, 2026

Rating: 4/5

Good quality, packaging could be better

The bearings themselves are excellent and fit perfectly. Only giving 4 stars because the outer box was slightly damaged during shipping, though the product was safe.

Anonymous

Feb 06, 2026

Rating: 5/5

Very quiet operation

Replaced old noisy bearings in my electric motor with these. The difference in noise level is night and day. Highly recommend for quiet applications.

5 FAQ

Q: Are these bearings sealed or open?

A: This listing covers multiple variants. Please select the specific suffix (ZZ for metal shield, 2RS for rubber seal) from the dropdown menu.

Q: How can I verify these are genuine NSK?

A: Genuine NSK bearings have laser-etched markings on the ring. We provide a certificate of authenticity with bulk orders.

Q: What is the maximum RPM for the 6001 size?

A: For grease lubrication, the reference speed is approximately 24,000 RPM. Actual limits depend on load and housing conditions.

Q: Is the grease suitable for high temperatures?

A: The standard grease is suitable for operating temperatures up to 120 degrees Celsius. For higher temps, special lubrication is required.

Q: What is the bore size for the 6003 model?

A: The 6003 model has a bore size of 17mm, an outer diameter of 35mm, and a width of 10mm.

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