DFS Ball Screw

DFS High-Speed Double-Nut Ball Screw
The DFS Series Ball Screw is a flanged double-nut ball screw designed for applications requiring high-speed linear motion, increased axial rigidity, and controlled axial clearance.

The DFS configuration utilizes two ball nuts installed on the same screw shaft. Controlled preload between the two nuts helps maintain continuous contact between the rolling elements and screw raceways, reducing internal axial play and increasing the stiffness of the nut assembly.

The DFS Series features an end-cap ball recirculation system, Gothic-arch groove geometry, and integrated dust-protection features for high-speed, demanding industrial motion applications.

The series is available in nominal diameters ranging from 15 mm to 96 mm, with customizable screw lengths up to 4,000 mm and multiple accuracy grades depending on the configuration.

DFS Series High-Speed Ball Screw Specifications
Configuration: Flanged, preloaded double-nut assembly for zero backlash and high axial stiffness.
Recirculation: Internal end-cap return system engineered for smooth, low-noise operation at high speeds.
Diameter Range: 15 mm to 96 mm nominal shaft diameters.
Length: Custom cut-to-length options up to 4,000 mm.
Accuracy Grades: Available across C0, C1, C2, C3, C5, and C7 classes.
Production Process: Precision Cold Rolled or Precision Ground manufacturing.
Kinematics: High-velocity capability with model-dependent standard and high leads.
OEM Support: Comprehensive OEM/ODM customization, including tailored journals and end-machining.

Custom OEM / ODM DFS Ball Screw Manufacturing Services

Yongrun provides comprehensive OEM and ODM manufacturing for DFS Series (Double-Nut Flanged) ball screw assemblies, tailored to your engineering blueprints, physical samples, and application requirements.

Comprehensive Customization Capabilities:

Geometric Parameters: Screw diameter, lead/pitch, overall length, and right-hand or left-hand thread direction.

Performance & Tolerance: Precision grades (Rolled C7/C5, Ground C5/C3), calibrated preload levels, and zero-backlash tuning.

Nut & Flange Configurations: Custom flange geometry, bolt-hole patterns (PCD), and specialized internal ball recirculation circuits.

Shaft-End Machining: Precision turning, threading, keyways, snap-ring grooves, and step-downs compatible with standard (BK/BF, EK/EF, FK/FF) or bespoke support units.

Protection & Branding: Multi-stage wiper/sealing options (contact seals, labyrinth seals, scrapers), laser-marked part numbers/logos, and custom export packaging.

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