Anonymous
Apr 03, 2026
Rating: 5/5
Exactly as Described
Ordered the ZZ version for a high-speed application. Metal shields work great and allow for higher RPMs than rubber seals.
Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | NSK |
| Model Series | 6000, 6001, 6002, 6003, 6004, 6005, 6006 |
| Bearing Type | Deep Groove Ball Bearing |
| Seal Type | ZZ (Metal Shield) or DDU (Rubber Seal) |
| Material | High Carbon Chrome Steel |
| Precision Class | ABEC-1 / ISO Class 0 |
| Cage Material | Pressed Steel or Polyamide |
| Country of Origin | Japan |
| Lubrication | Pre-lubricated with Standard Grease |
| Packaging | Individual OEM Box |
Anonymous
Apr 03, 2026
Rating: 5/5
Exactly as Described
Ordered the ZZ version for a high-speed application. Metal shields work great and allow for higher RPMs than rubber seals.
Anonymous
Mar 17, 2026
Rating: 4/5
Good Quality but Pricey
You pay for the Japanese quality. They are more expensive than local brands but the longevity is worth it for critical machinery.
Anonymous
Mar 14, 2026
Rating: 5/5
Genuine Quality Bearings
These are definitely genuine NSK bearings. The machining is precise and they fit perfectly on my motor shafts. Very smooth operation with no noise.
Anonymous
Mar 04, 2026
Rating: 5/5
Fast Shipping and Well Packed
Arrived quickly and each bearing was in its own original box. The DDU seals are tight and seem durable for my application.
Anonymous
Feb 25, 2026
Rating: 5/5
Smooth Running on Lathe
Used the 6005 series for my lathe spindle. The runout is minimal and vibration is almost non-existent. Highly recommended.
Q: What is the main difference between ZZ and DDU seals?
A: ZZ refers to metal shields which offer less friction and higher speed capability. DDU refers to rubber contact seals which provide better protection against dust and moisture.
Q: What is the warranty period for these bearings?
A: We offer a 6-month warranty against manufacturing defects. Please retain your order number for any claims.
Q: Are these bearings manufactured in Japan?
A: Yes, these are imported directly from Japan and carry the original NSK markings indicating Japanese origin.
Q: Can I use these for high-speed motors?
A: Yes, the 6000 series is designed for high-speed operations, especially the ZZ shielded version. Please check the specific RPM limits for the size you choose.
Q: Do these come pre-lubricated?
A: Yes, all bearings come pre-lubricated with standard grease suitable for general industrial applications.