DFU Double Nut Ball Screw: Custom Non-Standard Ballscrew for CNC Machine Tools

Key Design Feature: Double Nut Structure

The double nut preload design is the biggest highlight of this DFU series ball screw:

• 1.Eliminates backlash completely, ensures zero clearance linear movement
• 2.Boosts structural rigidity and load-bearing capacity for heavy-duty CNC equipment
• 3.Delivers ultra-smooth operation with minimal vibration during high-speed movement

• 4.Extends overall service life under continuous cyclic operation
  Why Choose Our Custom Non-Standard Ball Screws?
  1. Complete OEM Customization Support
  As a professional OEM ball screw factory, we don’t only supply standard off-the-shelf models. We offer full customization to match your unique equipment requirements:
  • Custom screw length, lead, outer diameter and thread profile
  • Custom shaft end machining: milling, drilling, tapping, grinding per your drawings
  • Multiple material selections to fit light-load, corrosion-resistant or heavy-load working environments
  • Custom packaging, labeling and private branding for resellers
  2. Strict Precision Manufacturing & Quality Control
  Every ball screw goes through a full precision production workflow: cold rolling, CNC grinding, turn-milling, precision boring, straightening and assembly. Our 100% full-inspection quality control system covers every production stage to guarantee consistent precision.Available precision grades cover low-cost general automation (C7), mid-precision machining centers (C5) and ultra-precision lab/medical equipment (C3).

    3. Outstanding Performance Advantages 
 • High Reliability & Durability: GCr15 bearing steel with professional heat treatment resists wear, fatigue and deformation under long-hour operation
 • Zero-Backlash High Rigidity: Double nut preload structure maintains stable accuracy under heavy axial loads
 • Smooth Low-Noise Operation: Optimized ball circulation channel reduces friction noise, suitable for quiet workshop environments
 • Long Service Lifespan: Low rolling friction cuts component wear, lowering your equipment maintenance and replacement costs
 4. Fast Shipment & Flexible Ordering

• Stocked standard DFU series ball screws ship within 7 days

• Low MOQ: 1 unit sample available for your machine testing before bulk orders

• Secure, customized export packaging to avoid damage during sea/air freight

• Global shipping support via Shanghai port with professional export documentation

Common Application Scenarios of DFU Double Nut Ball Screws

Our DFU series non-standard ball screws are widely adopted across global industrial sectors:

• CNC milling machines, lathes, machining centers

• Automation linear motion stages, robotics arms

• Precision testing equipment, medical automation machinery

• Packaging machinery, 3C processing equipment

• Laser cutting and engraving machines

Get Your Custom Ball Screw Solution Today

Whether you need a ready DFU2005 double nut ball screw sample for testing, or fully non-standard custom ballscrews with special length, end machining and material, our engineering team can provide professional technical support and competitive factory-direct pricing.

Click the consultation button to send your drawings, dimensional requirements or equipment application details. We will reply within 24 hours with tailored quotations and technical specifications for your linear motion project.