A
Anonymous
Apr 18, 2026
Rating: 5/5
High Speed OK
Running at high RPMs without overheating. Very satisfied with this purchase.
Description
Japanese Imported Micro Small Bearings 606 607 608ZZ High Speed 609 625 626 627 628 629RS
Reviews
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
A
Anonymous
Apr 15, 2026
Rating: 5/5
Very Smooth
Silent operation as described. Great for high-speed applications.
A
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.
A
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.
A
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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