Anonymous
Mar 14, 2026
Rating: 5/5
Exact sizes as described
Needed specific miniature sizes and this kit had them all. Very satisfied with the precision.
Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | Chrome Steel SAE 52100 |
| Precision Rating | ABEC-7 |
| Seal Type | Double Shielded (ZZ) |
| Cage Material | Steel Ribbon |
| Lubrication | Pre-lubricated High-Speed Grease |
| Inner Diameter Options | 2.3, 3, 4, 6, 7, 8, 9, 10 mm |
| Surface Finish | Polished Raceways |
| Max RPM | Up to 30,000 RPM |
| Temperature Range | -20°C to +120°C |
| Package Quantity | 50 Pieces Assorted |
Anonymous
Mar 14, 2026
Rating: 5/5
Exact sizes as described
Needed specific miniature sizes and this kit had them all. Very satisfied with the precision.
Anonymous
Mar 10, 2026
Rating: 4/5
Good quality, tight fit
Quality seems high. The 2.3mm size was a bit tight but settled in after use. Good value for the variety.
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect for my drone project
These bearings fit perfectly in my custom drone build. The high-speed rating is accurate and they run very smoothly.
Anonymous
Feb 25, 2026
Rating: 4/5
Solid kit overall
Good variety of sizes. Would prefer more of the 6mm size but overall good value for money.
Anonymous
Feb 09, 2026
Rating: 5/5
Smooth operation
Very smooth spinning right out of the box. Great for small motors and hobby applications.
Q: What type of lubricant is pre-applied?
A: We use a high-speed synthetic grease suitable for the stated temperature range.
Q: Can I use these for skateboard wheels?
A: These are miniature bearings designed for small motors and drones, not standard skateboards.
Q: Do you offer bulk discounts for this kit?
A: Yes, please contact our sales team directly for bulk order pricing options.
Q: Are these bearings made of stainless steel?
A: No, these are made from Chrome Steel SAE 52100 for maximum durability and speed.
Q: Is the 2.3mm inner diameter actually available?
A: Yes, the full model range includes the 2.3mm inner diameter size as listed.