A
Anonymous
Mar 11, 2026
Rating: 3/5
One defective
9 out of 10 were perfect, one had a rough spot when spinning.
Description
Miniature High-Speed Bearing Assortment Inner Diameter 1 2 3 4 5 7 8 9 10 mm Model 12 Genuine
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand Name | Harbin |
| Bearing Type | Deep Groove Ball Bearing |
| Material | Chrome Steel GCr15 |
| Precision Class | ABEC-5 / P5 |
| Seal Type | ZZ (Metal Shielded) |
| Cage Material | Steel |
| Lubrication | Pre-greased |
| Inner Diameter Options | 1, 2, 3, 4, 5, 7, 8, 9, 10, 12 mm |
| Package Quantity | 10 Pieces per Lot |
| Common Applications | RC Models, Drones, Small Motors |
5 reviews
A
Anonymous
Feb 21, 2026
Rating: 5/5
Genuine Product
Verified the Harbin logo. Works as expected for high speed applications.
A
Anonymous
Feb 14, 2026
Rating: 5/5
Smooth Operation
Used these for my FPV drone motors. Spin very freely and seem durable.
A
Anonymous
Feb 10, 2026
Rating: 4/5
Good but tight
Quality is good but fit was slightly tight on 3mm shaft. Still usable.
A
Anonymous
Feb 07, 2026
Rating: 5/5
Fast Delivery
Arrived quickly and well packaged in oil paper to prevent rust.
5 FAQ
Q: What is the dynamic load capacity?
A: Dynamic load ratings vary by size, please refer to the spec sheet for details.
Q: Are these bearings waterproof?
A: No, ZZ shields protect from dust and debris but are not sealed against liquids.
Q: Is this material stainless steel?
A: No, this is chrome steel which offers higher hardness and durability.
Q: What is the maximum RPM for the 5mm bearing?
A: It varies by load, but small bore sizes can generally handle up to 30,000 RPM.
Q: Do you have 6mm inner diameter available?
A: Not in this specific lot, please check our other listings for 6mm options.
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