Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | NSK |
| Country of Origin | Japan |
| Material | High-Carbon Chromium Steel |
| Seal Type | Metal Shield (ZZ) |
| Precision Class | ISO Class 0 (ABEC-1) |
| Cage Material | Pressed Steel |
| Lubrication | Pre-greased |
| Bearing Series | 6000 Deep Groove |
| Load Capacity | Radial and Axial |
| Warranty | 1 Year Manufacturer |
Anonymous
Apr 12, 2026
Rating: 5/5
Smooth rotation out of the box
Bought the 6004 size for a project car alternator. Spin is buttery smooth with no grit. Will purchase again for future maintenance needs.
Anonymous
Feb 15, 2026
Rating: 5/5
Genuine Japanese product
Verified the markings on the bearing. These are authentic NSK units. Important to get real ones for high-speed applications to avoid premature failure.
Anonymous
Feb 10, 2026
Rating: 5/5
Perfect for CNC spindle repair
Ordered the 6002 size for my lathe spindle. The runout is minimal and operation is very smooth. Genuine NSK quality as expected from Japanese imports.
Anonymous
Feb 06, 2026
Rating: 4/5
Good quality, packaging could be better
The bearings themselves are excellent and fit perfectly. Only giving 4 stars because the outer box was slightly damaged during shipping, though the product was safe.
Anonymous
Feb 06, 2026
Rating: 5/5
Very quiet operation
Replaced old noisy bearings in my electric motor with these. The difference in noise level is night and day. Highly recommend for quiet applications.
Q: Are these bearings sealed or open?
A: This listing covers multiple variants. Please select the specific suffix (ZZ for metal shield, 2RS for rubber seal) from the dropdown menu.
Q: How can I verify these are genuine NSK?
A: Genuine NSK bearings have laser-etched markings on the ring. We provide a certificate of authenticity with bulk orders.
Q: What is the maximum RPM for the 6001 size?
A: For grease lubrication, the reference speed is approximately 24,000 RPM. Actual limits depend on load and housing conditions.
Q: Is the grease suitable for high temperatures?
A: The standard grease is suitable for operating temperatures up to 120 degrees Celsius. For higher temps, special lubrication is required.
Q: What is the bore size for the 6003 model?
A: The 6003 model has a bore size of 17mm, an outer diameter of 35mm, and a width of 10mm.
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