A
Anonymous
Apr 22, 2026
Rating: 5/5
Perfect for 3D printers
Upgraded my Z-axis with the LM8UU size. Layer consistency improved noticeably.
Description
Harbin Linear Bearing LM20UU Ball Sliding LM6 8 10 12 13 16 25 30 35 40 50
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand Name | Harbin |
| Model Series | LM UU Linear Ball Bearing |
| Material Composition | GCr15 Bearing Steel |
| Seal Configuration | Double Rubber Seals (UU) |
| Cage Material | Steel Retainer |
| Surface Finish | Anti-rust Oil Coating |
| Precision Rating | ABEC-1 / Normal Class |
| Shaft Compatibility | Hardened Linear Shaft |
| Country of Origin | China |
| Warranty Period | 12 Months |
5 reviews
A
Anonymous
Mar 28, 2026
Rating: 5/5
Bulk order satisfied
Consistent sizing across all units purchased. Great for multiple machine builds.
A
Anonymous
Mar 25, 2026
Rating: 4/5
Good quality control
One bearing felt slightly stiffer than the others but after running in it was fine. Good value overall.
A
Anonymous
Mar 20, 2026
Rating: 5/5
Smooth motion for CNC
Installed these on my router build and the movement is incredibly smooth. No binding issues on the shaft.
A
Anonymous
Feb 13, 2026
Rating: 4/5
Value for money
Packaging could be more protective but the bearings themselves are genuine Harbin quality.
5 FAQ
Q: Are these pre-lubricated?
A: Yes, they come pre-greased from the factory. Additional lubrication can be added later.
Q: Do you ship individually?
A: Yes, you can select specific models and quantities from the dropdown menu.
Q: Can I use these outdoors?
A: Not recommended for direct exposure to water or dust without additional protective covers.
Q: What shaft hardness is required?
A: We recommend hardened shafts with a hardness of 60HRC or higher for optimal lifespan.
Q: What is the temperature range?
A: Standard operating range is between -20 to 120 degrees Celsius for standard grease.
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