Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand	BJK
Material	Chrome Steel
Shield Type	Metal Shield (Z)
Precision Class	ABEC-7
Country of Origin	Japan
Bore Size Range	2mm - 9mm
Outer Diameter Range	5mm - 19mm
Width Range	2.5mm - 5mm
Lubrication	Pre-lubricated
Items per Pack	10 Pieces

5 reviews

Anonymous

Apr 15, 2026

Rating: 3/5

Mixed Bag

Most were great, but one felt gritty upon initial spin.

Anonymous

Mar 29, 2026

Rating: 5/5

High Quality

Genuine Japanese import feel. Very smooth rotation under load.

Anonymous

Mar 27, 2026

Rating: 5/5

Exact Fit

Replaced my old 688Z bearings perfectly. No modification needed.

Anonymous

Mar 15, 2026

Rating: 5/5

Smooth Operation

These bearings spin incredibly fast and fit perfectly in my RC car setup.

Anonymous

Feb 22, 2026

Rating: 4/5

Good Value

Quality is good but packaging was slightly loose during shipping.

5 FAQ

Q: Can I use these in water applications?

A: Not recommended without additional sealing as they are not stainless.

Q: What does Z mean in the model number?

A: It indicates a single metal shield on one side of the bearing.

Q: Do you ship internationally?

A: Yes, we ship worldwide via standard courier services.

Q: Are these compatible with 688ZZ?

A: Dimensions match, but ZZ denotes double shields while Z is single shield.

Q: Are these rust proof?

A: They are made of chrome steel, not stainless steel, so avoid water exposure.

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