25mm Ball Screw Assembly With Double Nut DFU2505 RM2505 2900mm Length Includes Ball Screw Nut BK20 End Supports Circlips Flexible Coupler Nut Housing And Nema 52 Motor Bracket For CNC Builds

High-precision 25mm Ball Screw Assembly for CNC, 2900mm
✔️ 25mm dia, 5mm lead, 2900mm length (114.17in), BK20 end, single pack

This 25mm ball screw assembly is designed for CNC builds, delivering precise, low-backlash linear motion. It comes with a double ball screw nut, BK20 end supports with locknuts and circlips, a flexible coupling, a nut housing, and a NEMA 52 motor bracket integrated with the BK20 setup for straightforward mounting. Lead time is 7-10 business days (excluding Chinese National Day and Spring Festival). The package is a single assembly ready to drop into your machine for clean alignment and solid performance.

✅ 25 mm ball screw diameter
✅ Lead 5 mm
✅ Total length 2900 mm (114.17 in)
✅ Includes double nut, BK20 end supports, and circlips
✅ Integrated motor bracket for NEMA 52
✅ Flexible coupling and nut housing
✅ Material: GCr15 steel; rolled thread
✅ Precision: C7 grade (C5 grinding option available)

💡 What is a ball screw assembly used for in CNC machines and how does a double nut preload improve performance?

Double nut preload tightens the drive train for accurate, repeatable motion and minimizes backlash.

- precise linear motion with reduced backlash in CNC systems - smoother operation and improved load handling - easy integration with BK20 end supports and NEMA 52 brackets