A
Anonymous
Apr 05, 2026
Rating: 4/5
Good value for money
Overall very good. One felt slightly tighter than the others but still functional.
Description
These miniature bearings are designed for high-speed rotation in DIY models and precision mechanical applications. They feature small bore sizes ranging from 1 mm to 9 mm to accommodate various shaft diameters. The construction supports smooth operation in compact assemblies requiring accurate movement. Select the specific bore diameter that matches your project requirements before installation.
Reviews
Attributes
| Brand | - |
| Category | Root / Industrial Small Parts |
| Origin | - |
| Material | Chrome Steel SAE 52100 |
| Bore Diameter Range | 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm |
| Precision Class | ABEC-5 |
| Seal Type | Open, Metal Shield (ZZ), or Rubber Seal (2RS) |
| Cage Material | Steel or Nylon |
| Lubrication | Pre-greased with High-Speed Oil |
| Maximum RPM | Up to 30,000 RPM |
| Package Quantity | 10 Pieces per Pack |
| Recommended Use | RC Cars, Drones, Robotics, Precision Instruments |
| Weight | Ultra-lightweight per Unit |
5 reviews
A
Anonymous
Apr 01, 2026
Rating: 5/5
Great quality bearings
Fit my RC car perfectly. No wobble and they handle high speeds without overheating.
A
Anonymous
Mar 12, 2026
Rating: 5/5
Exactly as described
Fast shipping and good packaging. The bearings were well protected from dust.
A
Anonymous
Feb 07, 2026
Rating: 5/5
High speed performance
No noise at high RPM. Exactly what I needed for my precision spindle project.
A
Anonymous
Feb 05, 2026
Rating: 5/5
Perfect for my drone build
These bearings spin incredibly smooth. I used the 3mm size for my motor mounts and noticed less friction immediately.
5 FAQ
Q: What is the return policy if I order the wrong size?
A: You can return unused packs within 30 days for a full refund.
Q: Can I use these bearings for 3D printer wheels?
A: Yes, they are suitable for 3D printers depending on the bore size required.
Q: Are these ceramic or steel bearings?
A: These are made from high-grade Chrome Steel SAE 52100 for durability.
Q: What type of grease is used in pre-lubrication?
A: We use a standard lithium-based grease suitable for high-speed applications.
Q: Do you offer bulk pricing for larger orders?
A: Yes, please contact our sales team for quotes on orders over 50 packs.
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