Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material	Chrome Steel SAE 52100
Country of Origin	Japan
Precision Rating	ABEC-7
Seal Type	Metal Shield (ZZ)
Cage Material	Steel Riveted
Lubrication	High-Speed Grease
Max RPM	30,000 (Varies by Size)
Noise Level	Z1 Group
Operating Temperature	-20°C to 120°C
Packaging	Individual Poly Bag

5 reviews

Anonymous

Mar 24, 2026

Rating: 3/5

Mostly Good

One bearing felt slightly rough out of the package, but the rest were fine. Customer service was helpful.

Anonymous

Mar 22, 2026

Rating: 4/5

Good Value

Quality is good but shipping took a bit longer than expected. The bearings themselves work perfectly.

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect Fit

Measured exactly as per chart. I ordered the 5mm bore and it fit my shaft without any issues.

Anonymous

Feb 11, 2026

Rating: 5/5

High Speed Performance

Using in RC motor, no heat buildup even after long runs. Highly recommend for high RPM applications.

Anonymous

Feb 06, 2026

Rating: 5/5

Excellent for Drones

These bearings spin incredibly smooth. I used the 3mm bore for my drone motors and noticed less friction immediately.

5 FAQ

Q: Do they come lubricated?

A: Yes, pre-lubricated with high-speed grease ready for installation.

Q: Suitable for 30k RPM?

A: Yes, designed for high speeds, though specific max RPM varies by bore size.

Q: Are these stainless steel?

A: No, they are made of Chrome Steel SAE 52100 for better durability and load capacity.

Q: What is the ABEC rating?

A: These are rated ABEC-7, suitable for high-speed precision applications.

Q: Are sizes metric?

A: Yes, all bore diameters listed in the chart are in millimeters.

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