Item No :
LM12UUSize (d*D*B) :
12x21x30mmMaterial :
Chrome steel GCr15Lead Time :
Normally 3-5 daysWeight :
0.315KGPayment Terms :
100% T/T or 30% T/T in advance ,70% before deliveryShipping Port :
Guangzhou, Ningbo, ShanghaiLM12UU Linear Bearing for CNC 3D Printers & Automation Equipment
⚙️Product description:
LM12UU Linear Ball Bearing is a widely used 12 mm linear motion bearing designed for smooth, precise, and low‑friction linear movement. It features a steel outer shell, a polymer cage, and rows of high‑precision steel balls, ensuring stable motion and long service life.
⚙️Technical Parameters:
|
Item No. |
LM12UU |
|
Branding |
Famous brand/RMO/Neutral/OEM |
|
Sealing |
UU |
|
Material |
Chrome steel GCr15 |
|
Lead Time |
3-5 days |
|
Precision |
Ground inner & outer raceways |
|
Ball Circuits |
4 rows |
|
Basic Load Rating |
Dynamic Cr 412 N, Static Cor 598 N |
|
Cage material |
Nylon or steel |
|
Shipping Port |
Guangzhou, Ningbo, Shanghai |
|
Payment |
100% T/T, or 30% T/T In Advance ,70% T/T After Finished Production |
⚙️Key Features:
Smooth & Low-Friction Motion: High‑precision steel balls ensure consistent and stable linear movement.
High Durability: Chrome steel outer ring provides extra strength and long service life.
Easy Installation: Standard LM series size, compatible with 12 mm linear shafts.
Stable Performance: Ideal for high‑frequency, long‑stroke linear motion applications.
| Model No. | d | D | H | m |
| LM3 | 3 mm | 7 mm | 10 mm | 1.4 g |
| LM4 | 4 mm | 8 mm | 12 mm | 1.9 g |
| LM5 | 5 mm | 10 mm | 15 mm | 4 g |
| LM6 | 6 mm | 12 mm | 19 mm | 8 g |
| LM6GA | 6 mm | 12 mm | 19 mm | 8 g |
| LM8S | 8 mm | 15 mm | 17 mm | 11 g |
| LM8SGA | 8 mm | 15 mm | 17 mm | 11 g |
| LM8 | 8 mm | 15 mm | 24 mm | 16 g |
| LM8GA | 8 mm | 15 mm | 24 mm | 16 g |
| LM10 | 10 mm | 19 mm | 29 mm | 30 g |
| LM12 | 12 mm | 21 mm | 30 mm | 31.5 g |
| LM13 | 13 mm | 23 mm | 32 mm | 43 g |
| LM16 | 16 mm | 28 mm | 37 mm | 69 g |
| LM16GA | 16 mm | 28 mm | 37 mm | 69 g |
| LM20 | 20 mm | 32 mm | 42 mm | 87 g |
| LM25 | 25 mm | 40 mm | 59 mm | 220 g |
| LM25GA | 25 mm | 40 mm | 59 mm | 220 g |
| LM30 | 30 mm | 45 mm | 64 mm | 250 g |
| LM35 | 35 mm | 52 mm | 70 mm | 390 g |
| LM38GA | 38 mm | 57 mm | 76 mm | 490 g |
The LM12UU linear bearing is widely used in:
• 3D printers (guide rails for hotbed and extruder)
• CNC machines (engravers, plasma cutters, woodworking machinery)
• Automation equipment (assembly lines, sorting systems, material handling units)
• Industrial robots (linear modules, sliding rails)
• Laboratory instruments & testing equipment (precision stages, linear sliders)
• Packaging and food processing machinery
• Optical devices and measurement instruments requiring linear guidance
| 1. Keep clean | 2. Use with caution | 3. appropriate tool | 4. Hot-loading | 5. Be careful of rust |
| Dust will have a bad effect on the bearing, so keep the surrounding clean. | Strong impact during use can easily cause scratches and indentations. | Avoid replacing existing tools, and use appropriate tools. | Bearings are precision parts, so hot installation is recommended. | Sweat on your hands during operation will cause rust, so it is best to wear gloves. |
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SFU1204 is a type of ball screw that is widely used in the field of precision machinery.
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