Anonymous
Apr 18, 2026
Rating: 5/5
High Speed OK
Running at high RPMs without overheating. Very satisfied with this purchase.
Description
Reviews
| 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 |
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.
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.