THK Square Flange Linear Bearings (LMK10UU, LMK12UU, LMK20UU, LMK40UU) are precision components designed for high-load, low-friction linear motion systems. Common parameters include.
Model | Inner Diameter (mm) | Outer Diameter (mm) | Thickness (mm) | Material |
---|---|---|---|---|
LMK10UU | 10 | 21 | 30 | Carbonised Bearing Steel [5] |
LMK12UU | 12 | 21 | 30 | Carbonised Bearing Steel [1] |
LMK20UU | 20 | 32 | 45 | Carbonised Bearing Steel |
LMK40UU | 40 | 60 | 80 | Carbonised Bearing Steel |
Key Advantages. Square flange design for easy mounting, glass fibre-reinforced phenolic retainer [5], and ±0.005mm precision tolerance.
Widely used in.
LMK12UU bearings reduced friction by 40% in a 120-cycle/minute packaging system, achieving 18-month maintenance-free operation [1].
LMK10UU enabled micron-level positioning accuracy in lens manufacturing systems through optimised preload adjustment.
A Guangdong-based supplier achieved 99.7% uptime using LMK20UU in brake component assembly lines, reducing replacement costs by $15,000 per year [1].
LMK40UU solutions increased wafer handling speed by 22% while maintaining cleanroom compliance in Shanghai facility [7].
Selection Checklist.
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[1] Alibaba LMK12UU Product Listings
[5] THK LM12UU Technical Sheet
[7] Installation Best Practices Guide