A
Anonymous
Apr 02, 2026
Rating: 4/5
Great value
Can't beat the price for stainless steel. One bearing squeaked initially but cleared up after use.
Description
Imported 440 Stainless Steel Miniature Bearing Assortment Inner Diameters 1 4 7 8 9 10 12mm
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | 440 Stainless Steel |
| Bearing Series | 5 & 6 Series |
| Available Bore Diameters | 1, 4, 7, 8, 9, 10, 12 mm |
| Precision Class | ABEC-5 |
| Shield Type | ZZ (Metal Shield) |
| Cage Material | Steel |
| Lubrication | Pre-greased |
| Surface Hardness | HRC 58-60 |
| Country of Origin | Imported |
| Recommended Applications | Drones, Robotics, Fishing Reels |
5 reviews
A
Anonymous
Mar 28, 2026
Rating: 5/5
Consistent dimensions
Ordered multiple sizes for a project. All measurements were within tolerance and fit perfectly.
A
Anonymous
Mar 17, 2026
Rating: 4/5
Good quality, tight fit
Quality seems high but the 10mm bore was a very tight press fit. Still works great though.
A
Anonymous
Mar 14, 2026
Rating: 5/5
No rust after months
Used these in a humid coastal environment. No signs of corrosion yet which is impressive for the price.
A
Anonymous
Mar 08, 2026
Rating: 5/5
Perfect for FPV builds
These bearings are incredibly smooth. Used them on my motor shafts and noticed less vibration immediately.
5 FAQ
Q: Is the 1mm bore actually exactly 1mm?
A: Yes, all bore diameters adhere to standard metric tolerances for precision bearings.
Q: Do you offer bulk discounts?
A: Yes, please contact our sales team for pricing on orders exceeding 100 units.
Q: Can I clean and re-lubricate them?
A: Yes, the metal shields can be carefully removed for cleaning and re-greasing if needed.
Q: What is the maximum RPM for these bearings?
A: Max RPM depends on load and lubrication, but generally suitable for high-speed motors up to 20,000 RPM.
Q: Are these bearings sealed or open?
A: These come with ZZ metal shields on both sides to protect against debris while maintaining speed.
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