Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Model Series | LMK UU Series |
| Available Bore Sizes | 6mm, 8mm, 10mm, 12mm, 13mm, 16mm, 20mm, 25mm, 30mm, 35mm, 40mm, 50mm, 60mm |
| Material Composition | GCr15 Bearing Steel |
| Seal Configuration | Double Rubber Seals (UU) |
| Motion Type | Linear Ball Recirculation |
| Precision Class | ISO Normal Class |
| Surface Hardness | HRC 60-64 |
| Operating Temperature | -20°C to 120°C |
| Surface Treatment | Anti-Rust Coating |
| Typical Applications | CNC Machines, 3D Printers, Automation Equipment |
Anonymous
Apr 17, 2026
Rating: 5/5
Excellent quality
I was worried about the quality at this price point, but they exceeded expectations. Using them on my 3D printer Z-axis.
Anonymous
Mar 31, 2026
Rating: 5/5
Durable and smooth
No noise during operation even under load. The flanged design makes mounting very easy.
Anonymous
Mar 20, 2026
Rating: 5/5
Perfect for my CNC build
These bearings fit perfectly on my 8mm shafts. The motion is smooth and there is no play. Great value for money.
Anonymous
Mar 14, 2026
Rating: 5/5
Fast shipping
Arrived quickly and well packaged. Exactly what I needed for my linear rail setup. Will buy again.
Anonymous
Feb 21, 2026
Rating: 4/5
Good bearings
One was slightly tight out of the box but loosened up after some use. Overall satisfied with the purchase.
Q: Do you offer bulk discounts for large orders?
A: Yes, please contact us directly for pricing on orders over 50 units.
Q: Can I use these bearings in an outdoor environment?
A: They are sealed, but we recommend protecting them from direct moisture and dust for longevity.
Q: What shaft tolerance do you recommend for these bearings?
A: We recommend using shafts with h6 or g6 tolerance for the best fit and performance.
Q: What is the overall length of the LMK20UU model?
A: The length varies by bore size. Please refer to the detailed specification chart in the product description.
Q: Are these bearings pre-lubricated?
A: Yes, they come with standard grease applied from the factory.
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