5 Pack Linear Bearings Set LM12UU LM13UU LM16UU LM20UU ABEC-1 High Precision Ball Bearings For CNC Linear Guides 12mm 13mm 16mm 20mm, Pro Grade, DIY Friendly, CNC Ready For Smooth Motion

Five-Pack ABEC-1 Linear Bearings for CNC Guides 12-20mm
✔️ Five bearings LM12UU LM13UU LM16UU LM20UU, ABEC-1 precision

The set features ABEC-1 precision linear bearings sized for 12, 13, 16, and 20 mm guides. Perfect for DIY CNC rigs, 3D printers, and any project needing smooth shaft motion.

✅ Sizes: 12mm, 13mm, 16mm, 20mm bores
✅ Pack: 5 bearings total (LM12UU, LM13UU, LM16UU, LM20UU)
✅ ABEC-1 grade for better stability and durability

💡 What is a pillow block bearing used for in a CNC or linear-motion setup? It’s a handy way to support and align a rotating shaft for smooth, accurate motion. - assists shaft alignment and reduces play on 12-20 mm systems - enables smooth linear motion with ABEC-1 bearings - common in DIY CNC rigs, 3D printers, and automation projects

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