Introduction to Precision Ball Screws for Industrial Automation In modern CNC machining, automation equipment and precision linear motion systems, the ball screw is the core transmission component that converts rotary motion into smooth linear movement. Compared with traditional lead screws, ball screws rely on circulating steel balls between the screw shaft and nut to deliver ultra-low friction, high positioning accuracy and long service life—making them irreplaceable for high-demand industrial machinery. Today we’ll deep dive into our DFU2005 custom double nut ball screw, a non-standard customized ballscrew tailored for CNC machine tools, and break down its core advantages, manufacturing standards and customization support for global industrial buyers. Product Overview: DFU2005 Non-Standard Double Nut Ball Screw Our featured DFU2005 ball screw comes with a total length of 200mm (7.87 inches), complete double nut assembly and unfinished shaft ends, ready for secondary end machining according to your equipment design. Item Details Product Name Precision Ball Screw / Custom Non-Standard Ballscrew Model DFU2005 (Custom non-standard size supported) Brand Shuntai Raw Material Standard GCr15 bearing steel; optional stainless steel, alloy steel, carbon steel, brass, aluminum Manufacturing Process Rolled screw shaft, ground screw shaft; full CNC precision machining workflow Precision Grade C3 / C5 / C7 precision tolerance options Lead Time 7 working days for standard stock items Shipment Port Shanghai, China MOQ 1 piece for sample testing 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 operationWhy Choose Our Custom Non-Standard Ball Screws?1. Complete OEM Customization SupportAs 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 resellers2. Strict Precision Manufacturing & Quality ControlEvery 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.