Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | NSK |
| Material | High Carbon Chrome Steel |
| Shield Type | ZZ (Metal) or DDU (Rubber) |
| Precision Grade | P5 (ABEC-5) |
| Country of Origin | Japan |
| Cage Material | Pressed Steel |
| Lubrication | Pre-greased for High Speed |
| Noise Level | Quiet Operation (Z1 Group) |
| Package Quantity | 10 Pieces per Pack |
| Warranty | 1 Year Manufacturer Warranty |
Anonymous
Apr 05, 2026
Rating: 4/5
Great Quality, Pricey
No complaints about the performance. They are very precise and fit perfectly in my 3D printer build. Only giving 4 stars because they are a bit more expensive than alternatives.
Anonymous
Mar 30, 2026
Rating: 5/5
Smooth Ride
Upgraded my skateboard wheels with these 608ZZ bearings. They spin forever and handle the load well. Genuine Japanese quality is worth the extra cost.
Anonymous
Feb 13, 2026
Rating: 5/5
High RPM Capability
Using these in my RC car differential. They handle high RPMs without heating up. The preload seems just right out of the box. Highly recommended for serious hobbyists.
Anonymous
Feb 10, 2026
Rating: 5/5
Perfect for FPV Motors
These NSK bearings are incredibly smooth. I used the 608 size for my drone motors and the noise reduction is noticeable compared to generic brands. High speed performance is excellent.
Anonymous
Feb 08, 2026
Rating: 5/5
Genuine NSK Product
I was worried about fakes but these are the real deal. Laser etching is clean and packaging was secure. The 605 size fit my small electric motor perfectly.
Q: Will the 608 fit standard skateboard wheels?
A: Yes, the 608 series is the standard size for most skateboard and longboard wheels, with an 8mm inner diameter.
Q: What is the difference between ZZ and DDU models?
A: ZZ models have metal shields on both sides, suitable for high speed. DDU models have rubber contact seals, offering better protection against dust and water but slightly higher friction.
Q: What is the maximum RPM for the 608 size?
A: For the 608 size, the limiting speed is approximately 20,000 RPM with grease lubrication, depending on the specific load and application conditions.
Q: Are these bearings genuine NSK products?
A: Yes, all our bearings are sourced directly from authorized distributors and are 100% genuine Japanese NSK products.
Q: Do these come pre-lubricated?
A: Yes, all bearings come pre-greased from the factory with high-speed lubricant suitable for immediate installation.
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