LM4UU Linear Ball Bearings 4Mm ID 8Mm OD 12Mm Length With Double Seal For 3D Printers CNC Machines And Precision Equipment For DIYers And Pros High Performance Guide Bearings
✔️ ID 4mm, OD 8mm, length 12mm; double-seal, dustproof
The LM4UU linear ball bearing is a compact, precision guide bearing designed for smooth, low-friction motion on 4 mm shafts. It’s a common pick for 3D printers, CNC machines, and precision equipment, featuring a double seal to block dust and moisture and extend service life.
✅ ID 4 mm, OD 8 mm, length 12 mm
✅ Dynamic load Cr 88.2 N; Static load Cor 108 N
✅ Made of bearing steel with high hardness and wear resistance
✅ Four-row steel balls minimize friction for smooth motion
✅ Double seal design blocks dust and moisture for dusty environments
✅ Suitable for 3D printers, CNC slides, linear modules and automation
💡 What is a sealed 4 mm ID linear bearing used for? It’s a handy, compact way to achieve precise, low-friction motion in small automation setups. - 4 mm bore fits standard 4 mm shafts - handy for 3D printers and CNC slides needing smooth travel - double seals block dust/moisture, extending lubricant life - compatible with 8 mm guide rails for stable alignment
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