SFNU Ball Screw

SFNU Ball Screw with DIN 69051 Form B Flange Nut

The SFNU Ball Screw is an industrial linear motion drive system featuring a compact DIN 69051 Form B flange nut and an internal ball recirculation mechanism. It is engineered for applications requiring efficient rotary-to-linear conversion, dependable positioning repeatability, compact mechanical envelopes, and standardized mounting dimensions.

Manufacturing Grades & Accuracy Classes
To accommodate varied technical and budgetary requirements, the SFNU Series is available in both precision-rolled and precision-ground configurations:

• Precision Rolled: Offered in C7 and C5 accuracy grades for standard automation and transport axes.
• Precision Ground: Offered in C5 and C3 accuracy grades for high-precision machine tools and metrology equipment.

Standardized Form B Geometry & Applications
The compact Form B trimmed flange features flattened top and bottom edges, enabling the screw centerline to sit closer to the machine bed. This low-profile geometry makes the SFNU Ball Screw well-suited for CNC machine tools, automated production equipment, linear actuators, and positioning tables where space constraints and standardized interchangeability are critical.

Custom & OEM Manufacturing
Lishui City Yongrun Precision Machinery Co., Ltd. provides comprehensive OEM/ODM manufacturing for SFNU Ball Screws, supplying custom lengths, specific end-machining, and customized configurations based on technical drawings and sample specifications.

Custom SFNU Ball Screw Manufacturing Services

Manufacturing Based On:
2D / 3D CAD Files: STEP, IGES, DWG, DXF
Engineering Blueprints: PDF technical drawings
Physical Samples: Reverse engineering from customer-supplied samples
Part Cross-Referencing: Equivalent replacement for legacy ball screw part numbers
 

Customization Capabilities:
Drive Geometry: Custom shaft diameters, lead pitches, total lengths, and effective stroke lengths.
Precision & Preload: Accuracy classes in Rolled (C7, C5) or Ground (C5, C3) grades; customizable axial clearance and preload classes (e.g., Z0, ZA).
Shaft-End Machining: Standard journal machining for BK/BF, EK/EF, and FK/FF support units, or custom stepped ends, snap-ring grooves, keyways, and threaded tips.
Nut & Flange Customization: DIN 69051 Form B standard dimensions or bespoke mounting hole configurations.
Branding & Logistics: Laser marking (custom logos, serial numbers, part codes) and specialized packaging.
 

Request a Fast Quotation:
To receive a detailed technical quote and lead-time estimate, please provide:
Engineering drawing / CAD file / Model number / Physical sample or clear dimensional photos.

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