LMK20 Linear Bearings
| LMK20UU Linear Bearings | |||
|---|---|---|---|
| Part Number | LMK20UU | d1 | 5.5 |
| Number of Ball Columns | 5 | d2 | 9 |
| dr | 20 | h | 5.1 |
| D | 32 | Verticality of flange | 15 |
| L | 42 | Radial runout | 15 |
| D1 | 54 | Dynamic Load Co(N) | 900 |
| K | 42 | Static Load Cor(N) | 1400 |
| H | 8 | Weight(Kg) | 0.163 |
| φ | 43 | ||
LMK20 Linear Bearing | LMK20UU / LMK20OP Types Available
The LMK20 linear bearing is a heavy-duty square flange-type linear motion component. Featuring an integrated square flange for accurate positioning and sturdy mounting, it offers high rigidity, stable load performance and low-friction linear movement. Available in LMK20UU closed type and LMK20OP open type, this bearing delivers reliable, cost-effective linear motion solutions for medium and heavy-duty precision automation machinery.
LMK20UU vs LMK20OP | Model Differences
LMK20UU (Closed Type): Adopts a fully closed double rubber sealing structure to block dust and industrial contaminants. It effectively seals internal lubrication and supports long-term maintenance-free operation, ideal for standard workshops and dusty working environments with regular linear strokes.
LMK20OP (Open Type): Designed with an open hollow structure and built-in oil grooves for easy lubrication and efficient heat dissipation. It reduces heat accumulation during high-frequency continuous operation, perfectly suited for high-speed, long-stroke and heavy-load precision linear motion applications.
Material Introduction
Bearing Steel Shell And Steel Balls: LMK20 linear bearings adopt high-quality bearing steel with professional heat treatment. High surface hardness and excellent wear resistance ensure stable heavy-load performance and ultra-smooth sliding, extending service life under long-term continuous industrial operation.
Engineering Plastic Retainer And Rubber Seals: High-toughness engineering plastic retainer enables flexible, low-noise and low-resistance steel ball circulation. LMK20UU is equipped with wear-resistant rubber seals for durable long-term dustproof and anti-fouling protection.
Product Features
Standard square flange design for fast positioning and firm installation. Ultra-low friction ensures smooth and stable linear motion. High positioning accuracy and excellent motion repeatability. Enhanced structure for improved heavy load capacity. Dual structural designs adapt to diverse working scenarios.
Application Scenarios
LMK20 square flange linear bearings are widely applied in CNC machine tools, heavy-duty engraving equipment, automatic sliding platforms, industrial robotic arms and automation production lines. LMK20UU fits conventional and dusty industrial environments; LMK20OP is optimal for high-speed, long-stroke heavy-duty precision automation systems.
