Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | NSK |
| Model Number | MR52 / 693ZZ |
| Inner Diameter | 3 mm |
| Outer Diameter | 8 mm |
| Width | 4 mm |
| Material | Chrome Steel |
| Seal Type | ZZ (Metal Shield) |
| Precision Rating | ABEC-5 |
| Cage Material | Steel |
| Country of Origin | Japan |
Anonymous
Apr 06, 2026
Rating: 5/5
Fast Shipping
Arrived quickly and works great. The high-speed rating is suitable for my GPU fan which spins at high RPMs under load.
Anonymous
Mar 25, 2026
Rating: 5/5
Quiet Operation
No more grinding noise from my cooling fan. The NSK quality is evident in the smooth rotation. Highly recommend for anyone repairing PC fans.
Anonymous
Mar 11, 2026
Rating: 5/5
Perfect Replacement
These bearings fit my GPU fan perfectly. The dimensions were exact at 3x8x4 mm. My graphics card is running quietly again after replacing the worn-out originals.
Anonymous
Feb 20, 2026
Rating: 5/5
High Speed
Spins very smoothly without any wobble. These are ideal for miniature fan repairs. Very satisfied with the purchase and performance.
Anonymous
Feb 20, 2026
Rating: 4/5
Good Quality
Genuine NSK product as described. Installation required some patience but the bearing itself is top notch. Deducted one star only because packaging was minimal.
Q: What is the maximum RPM these can handle?
A: These are high-speed miniature bearings designed for cooling fans, typically handling speeds well over 10,000 RPM.
Q: Is there a warranty included?
A: Yes, all our NSK bearings come with a standard 30-day return policy and manufacturer defect warranty.
Q: Will this bearing fit a GeForce 3070 fan?
A: Please measure your existing bearing. If the dimensions are 3x8x4 mm, this MR52/693ZZ model will be compatible.
Q: Are these bearings pre-lubricated?
A: Yes, these NSK bearings come pre-lubricated from the factory and are sealed with metal shields.
Q: How many bearings are included in one order?
A: This listing is for a pair of bearings, sufficient for one standard GPU fan motor.
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