4ミリメートルリニアベアリング（ダブルSealed 付き）LM4UU CNC マシンおよび3D プリンター用 12個入りニッケルメッキ精密ベアリングは、自動装置における繰り返し位置決めにおいて、滑らかで低摩擦な動きと高精度を実現します

4mm LM4UU Double-Sealed Bearings for CNC Printers, 12-Pack
✔️ Bore 4mm, OD 8mm, L 12mm; double sealed, nickel-plated, 12 pcs

LM4UU 4mm linear bearings are compact, double-sealed bushings designed for smooth, precise motion in CNC machines, 3D printers, and other automated equipment. They pair with 4mm shafts and deliver reliable performance in tight spaces, with corrosion-resistant nickel plating.

✅ Model: LM4UU, Bore 4mm, OD 8mm, L 12mm
✅ Double rubber seals protect against dust and moisture
✅ Nickel-plated carbon steel body for corrosion resistance
✅ Recirculating ball design for smooth, low-friction motion
✅ Pack: 12 bearings per order
✅ Operating temp up to 80°C

💡 What is a sealed linear bearing used for in small machinery?

- Handy for compact CNC axes and 3D printer beds in tight spaces - Provides smooth, low-friction motion on 4mm shafts - Sealed design keeps dust out and lubrication in, boosting life - Easy upgrade with standard LM4UU sized bearings