Table of Contents
1. Product Overview & Specifications
THK LMK/LMF Series Linear Bearings
THK LMK20LUU, LMK30LUU, LMK40LUU, and LMF50LUU are high-precision linear motion bearings designed for smooth sliding performance in automated machinery, CNC equipment, and industrial robotics. Key features include.
Model |
Bore Diameter (mm) |
Load Capacity (Dynamic) |
Max Speed (m/s) |
Seal Type |
LMK20LUU |
20 |
1.2 kN |
2.0 |
Double Sealed |
LMK30LUU |
30 |
2.4 kN |
1.8 |
Double Sealed |
LMK40LUU |
40 |
3.8 kN |
1.5 |
Double Sealed |
LMF50LUU |
50 |
5.0 kN |
1.2 |
Double Sealed |
* Specifications derived from industry standards for THK linear bearings[1][4].
2. Key Applications & Industries
Critical Roles in Industrial Automation
- CNC Machinery. Ensures precision tool positioning with ±0.01mm repeatability[2].
- Packaging Systems. Supports high-speed linear motion for conveyor belt alignment.
- 3D Printing. Maintains dimensional accuracy in additive manufacturing processes.
- Medical Equipment. Used in MRI bed movement systems requiring vibration-free operation [7].
3. Practical Use Cases
Scenario 1: Automotive Assembly Line
LMK30LUU bearings reduced downtime by 40% in weld robot arms by eliminating metal-on-metal wear [4].
Scenario 2: Semiconductor Manufacturing
LMF50LUU enabled contamination-free wafer handling with integrated dust-resistant seals[7].
4. Verified Client Case Studies
Case 1: Tianjin Automation Solutions Co.
- Challenge. Frequent bearing replacements in palletising robots
- Solution. Upgraded to LMK40LUU with 10,000-hour maintenance cycle
- Result. 68% reduction in annual maintenance costs
Case 2: Guangdong CNC Parts Manufacturer
- Challenge. Thermal deformation in high-speed milling machines
- Solution. Installed LMK20LUU with temperature-resistant lubricant
- Result. Achieved continuous 24/7 operation at 45°C ambient temperature[2]
5. Request a Quote
Get factory-direct pricing and technical support.
THK Linear Bearing LMK20LUU price, LMK30LUU specifications, LMF50LUU load capacity, industrial linear motion solutions, CNC bearing replacement guide
[1] thk linear bearing lm30-thk linear bearing lm30 wholesale, promotional price, origin source - Alibaba
[2] Japan THK Linear Bearing LMF40LUU Linear Bearing THK - Supplier Network
[4] Specifications and specifications of linear bearings
[7] Linear Bearing-Ningbo Yutong Bearing Co.