Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material	Chrome Steel GCr15
Origin	Japan
Precision Grade	ABEC-5
Seal Type	ZZ (Metal Shield)
Cage Material	Steel
Lubrication	Pre-lubricated with Grease
Noise Level	Low Noise (Z1)
Hardness	HRC 60-65
Operating Temp	-20°C to 120°C
Package Quantity	10 Pieces

5 reviews

Anonymous

Apr 18, 2026

Rating: 5/5

High Speed OK

Running at high RPMs without overheating. Very satisfied with this purchase.

Anonymous

Apr 15, 2026

Rating: 5/5

Very Smooth

Silent operation as described. Great for high-speed applications.

Anonymous

Apr 07, 2026

Rating: 4/5

Good but Tight

Quality seems genuine but one bearing was slightly tight out of the box. Others are perfect.

Anonymous

Mar 08, 2026

Rating: 5/5

Excellent Quality

These bearings are incredibly smooth. Used them for my robotics project and the performance is top notch.

Anonymous

Feb 27, 2026

Rating: 5/5

Perfect Fit

Measured exactly to spec. Fits my 3D printer axes perfectly.

5 FAQ

Q: Can these be used for skateboard wheels?

A: Yes, the 608 size is the standard bearing size for most skateboard wheels.

Q: What is the maximum RPM for size 608?

A: For 608ZZ, the limiting speed is approximately 28,000 RPM with grease lubrication.

Q: What is the difference between ZZ and RS?

A: ZZ has metal shields on both sides, while RS has rubber contact seals for better dust protection.

Q: Are these bearings made of stainless steel?

A: No, these are made of Chrome Steel GCr15 for better hardness and durability.

Q: Do I need to add oil before using?

A: No, they come pre-lubricated with high-quality grease ready for immediate use.

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