Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand Name	BJK
Model Series	682-689Z
Material Composition	Chrome Steel
Seal Configuration	Single Metal Shield (Z)
Precision Rating	ABEC-5
Cage Material	Steel
Lubrication Type	Pre-greased
Origin Country	Japan
Inner Diameter Range	2mm - 9mm
Package Weight	50 Grams

5 reviews

Anonymous

Apr 19, 2026

Rating: 4/5

Good for RC Cars

Noticed improved speed and less friction in my RC car wheels. One star off because shipping took a while.

Anonymous

Apr 12, 2026

Rating: 3/5

Average Performance

One bearing felt slightly rough out of the box, but the rest were fine. Acceptable for the price.

Anonymous

Mar 18, 2026

Rating: 5/5

Genuine Japanese Quality

No noise after installation. You can tell the difference between these and cheaper alternatives.

Anonymous

Jan 31, 2026

Rating: 5/5

Excellent Precision

These bearings spin very freely and fit perfectly in my custom build. Highly recommended for precision tasks.

Anonymous

Jan 26, 2026

Rating: 5/5

Great Value Pack

Perfect for multiple projects. Having a range of sizes in this series is very convenient for my workshop.

5 FAQ

Q: Is the grease heat resistant?

A: Standard grease handles moderate heat typical for general machinery.

Q: Do you offer 6800 series as well?

A: Please check our store for other series and availability.

Q: What is the return policy?

A: 30 days for unused items in original packaging.

Q: Are these compatible with 3D printers?

A: Yes, commonly used in extruders and moving parts of 3D printers.

Q: Are these suitable for high RPM motors?

A: Yes, designed for high speed applications within standard load limits.

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