12mm Bidirectional Ball Screw CNC Kit SFU1204 200mm Long Beefy Build With 2 Nuts 2 Housings Coupler BK BF10 Bearing Support And Nema 23 Motor Mounting Bracket Left And Right Hand
✔️ Bi-directional 12mm screw, 200mm length, 2 nuts, BK10 end supports.
This complete 12mm bidirectional ball screw CNC kit (SFU1204) is built for precise linear motion in CNC machines, 3D printers, and automation projects. It combines dual screws, two nuts, bearing blocks, BF10 end supports, and a motor mounting bracket for a clean, synchronized drive system with a 22.5mm travel per side.
✅ 12mm SFU1204 bi-directional screw, 200mm overall with 22.5mm travel per hand.
✅ Includes 2 nuts, BK10 end supports and motor bracket for Nema 23 with locknuts and circlips.
✅ 5mm bore flexible coupling included; default matches motor shaft; other sizes available on request.
✅ Left- and right-hand threads equal by default; customization available for other lengths.
✅ Low friction and low noise operation; reduced wear and longer life in CNC drives.
✅ 20mm reserved middle connection; CAD data and end machining available on request.
💡 What is a pillow block bearing used for in CNC motion systems?
Pillow block bearings support shafts, keeping them aligned, and reduce wobble in CNC drive systems. They help ensure smooth, accurate motion when used with ball screws and linear guides.
- supports shafts and keeps precise alignment in CNC linear motion - reduces backlash and wear in ball screw and rail systems - handy for hobbyists and professionals building CNC machines ✝️