Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand	NSK
Model Number	6003
Bearing Type	Deep Groove Ball Bearing
Inner Diameter	17 mm
Outer Diameter	35 mm
Width	10 mm
Seal Type	ZZ (Metal Shield)
Internal Clearance	C3
Precision Grade	P5
Country of Origin	Japan

5 reviews

Anonymous

Apr 15, 2026

Rating: 5/5

Smooth operation

Replaced an old noisy bearing with this one. The difference is night and day. Very quiet and runs cool under load.

Anonymous

Apr 05, 2026

Rating: 5/5

High quality bearing

Used for a skateboard wheel project. The P5 precision grade makes a noticeable difference in noise reduction. Very satisfied.

Anonymous

Apr 02, 2026

Rating: 5/5

Genuine part, perfect fit

Ordered this for my electric motor repair. Dimensions are exact and the rotation is incredibly smooth. Definitely genuine NSK quality.

Anonymous

Feb 21, 2026

Rating: 4/5

Good but packaging loose

The bearing itself is excellent and works as expected. However, the packaging was a bit loose during shipping. Product arrived safe though.

Anonymous

Feb 01, 2026

Rating: 5/5

Fast shipping

Needed this urgently for a machine repair. Arrived faster than expected and fits the 17mm shaft perfectly. Would buy again.

5 FAQ

Q: Is this made in Japan or China?

A: This specific SKU is imported from Japan, as indicated in the product title and specifications.

Q: Is this bearing pre-lubricated?

A: Yes, this NSK 6003ZZ comes pre-lubricated with high-quality grease suitable for general applications.

Q: What is the difference between ZZ and RS seals?

A: ZZ indicates metal shields on both sides, while RS indicates rubber seals. ZZ offers less friction but less protection against contaminants compared to RS.

Q: Can this handle high-speed applications?

A: Yes, the P5 precision grade and C3 clearance allow for higher speed operations compared to standard grades.

Q: What is the static load rating?

A: The basic static load rating for a 6003 bearing is typically around 4.05 kN, but please consult the official NSK catalog for exact engineering data.

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