Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand	NSK
Model Series	684, 685, 686, 687, 688, 689, 694-698
Country of Origin	Japan
Material	Chrome Steel
Seal Type	Metal Shield (Z Type)
Precision Rating	ABEC-1 (P0)
Cage Material	Steel
Lubrication	Pre-greased
Row Configuration	Single Row
Packaging	Individual Anti-rust Box

5 reviews

Anonymous

Apr 16, 2026

Rating: 5/5

Genuine NSK Quality

These bearings are smooth and clearly authentic. Used them for my RC motor and the performance is excellent.

Anonymous

Apr 03, 2026

Rating: 4/5

Solid bearings

Good quality steel. They handle radial load well. Just make sure you select the correct size from the list.

Anonymous

Mar 31, 2026

Rating: 4/5

Good fit

Fit perfectly into my skateboard wheels. One star off because shipping took a bit longer than expected.

Anonymous

Feb 16, 2026

Rating: 5/5

Very smooth operation

No noise at all during operation. The Z shield keeps dust out effectively. Highly recommend for machinery.

Anonymous

Feb 06, 2026

Rating: 5/5

Exactly as described

Ordered the 688 size. Dimensions were precise. Great for replacing worn out parts in my printer.

5 FAQ

Q: Are these bearings genuine NSK products?

A: Yes, all our bearings are imported directly from Japan and are 100% genuine NSK.

Q: Can these handle high-speed applications?

A: Yes, these are designed for high-speed rotation suitable for motors and spindle applications.

Q: What are the dimensions for the 688 bearing?

A: The 688 bearing has an inner diameter of 8mm, outer diameter of 16mm, and width of 5mm.

Q: Is the Z type sealed on both sides?

A: No, the Z type indicates a metal shield on one side. If you need both sides shielded, please look for ZZ type.

Q: Do these come pre-lubricated?

A: Yes, all bearings come pre-greased from the factory for immediate use.

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