Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand	BJK
Material	Chrome Steel GCr15
Seal Type	ZZ (Metal) or 2RS (Rubber)
Precision Rating	ABEC-5 / ABEC-7
Cage Material	Steel or Nylon
Lubrication	Pre-lubricated Grease
Inner Diameter	4mm to 8mm
Outer Diameter	12mm to 22mm
Width	4mm to 7mm
Applications	Motors, Drones, Skateboards, Machinery

5 reviews

Anonymous

Mar 08, 2026

Rating: 4/5

Good value

Works well for the price. One bearing felt slightly tight but loosened up after use.

Anonymous

Feb 28, 2026

Rating: 4/5

Fast shipping

Product arrived well packaged. Bearings are precise and fit standard housings.

Anonymous

Feb 18, 2026

Rating: 5/5

Smooth and Quiet

Used these for my drone motors. Very smooth spin and low noise levels.

Anonymous

Feb 13, 2026

Rating: 5/5

Perfect fit

Replaced old 608Z bearings in my skateboard wheels. Great speed and durability.

Anonymous

Feb 05, 2026

Rating: 5/5

Reliable quality

Imported quality seems genuine. No vibration during high RPM operations.

5 FAQ

Q: Are these suitable for electric skateboards?

A: Yes, the 608Z model is standard for skateboard wheels.

Q: Can I mix sizes in one order?

A: Please select specific sizes from the dropdown menu during checkout.

Q: Is there a warranty?

A: We offer a 30-day return policy for defective items.

Q: What is the maximum RPM?

A: Depends on the specific size, but generally rated for high-speed applications up to 30,000 RPM.

Q: Do they come pre-lubricated?

A: Yes, all bearings come pre-lubricated with high-quality grease.

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