A
Anonymous
Apr 13, 2026
Rating: 5/5
Exact fit
Measured 1mm bore perfectly with my calipers. Essential for precision miniature projects.
Description
DIY Precision Miniature High-Speed Bearings, Inner Diameter 1/1.2/1.5/2/2.5/3mm x 4mm, Outer Diameter 6mm
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | Chrome Steel SAE 52100 |
| Precision Rating | ABEC-5 (ISO P0) |
| Seal Configuration | Double Metal Shield (ZZ) |
| Cage Type | Steel Ribbon Cage |
| Lubricant | Low-Viscosity Synthetic Grease |
| Max RPM | Up to 35,000 (Size Dependent) |
| Dynamic Load Rating | 0.65 kN (Average) |
| Static Load Rating | 0.25 kN (Average) |
| Operating Temperature | -20°C to +120°C |
| Package Quantity | 10 Units per Pack |
5 reviews
A
Anonymous
Apr 02, 2026
Rating: 5/5
Smooth operation
Used for my custom RC motor build. Spins incredibly smooth and handles high RPMs without heating up.
A
Anonymous
Mar 24, 2026
Rating: 3/5
Average quality
Works but noise level varies between units. Acceptable for hobby use but not industrial.
A
Anonymous
Mar 15, 2026
Rating: 5/5
Great for drones
High speed performance is solid. Installed them in my racing drone motors and noticed less friction.
A
Anonymous
Feb 11, 2026
Rating: 4/5
Mostly good
One bearing had slight resistance out of the box, but the other nine were perfect. Good value for the price.
5 FAQ
Q: Are these suitable for 3D printers?
A: Yes, they are commonly used for cooling fans and extruder assemblies in custom 3D printer builds.
Q: Do you ship internationally?
A: Yes, we ship worldwide. Please check the checkout page for specific rates to your country.
Q: Can I clean the grease out?
A: Yes, you can clean them with solvent, but please note this may affect the warranty and lifespan.
Q: Are these stainless steel?
A: No, these are Chrome Steel for maximum hardness and durability. Stainless options are available in a different listing.
Q: What is the tolerance on the bore?
A: These follow standard ISO tolerance classes for miniature bearings, typically ABEC-5 specifications.
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