SFK Ball Screw

SFK Ball Screw with Compact Flanged Nut
Compact Miniature Ball Screw for Space-Limited Linear Motion

The SFK Series Ball Screw is an engineered linear motion solution developed for equipment where physical installation space, moving mass, and positioning consistency are primary considerations.

Featuring a compact flanged nut and small-diameter shaft configurations (from 4 mm up to 25 mm), the SFK Series provides reliable linear motion for mechanisms with restricted envelopes, short-to-moderate strokes, and low-inertia drive requirements. Low-friction rolling contact between the precision raceway and internal recirculating steel balls supports smooth motion and high mechanical transmission efficiency.

Yongrun Precision provides full-service manufacturing for the SFK Series based on technical drawings, physical samples, required accuracy grades, and application parameters.

SFK Series Product Profile
Product Type: Compact Flanged Ball Screw Assembly (SFK Series).
Nut Design: Single flanged nut with integrated internal ball recirculation.
Processing Options: Precision Cold Rolled (C7/C5) or Precision Ground (C5/C3/C1/C0).
Diameter Range: 4 mm – 25 mm nominal shaft diameters.
Length: Cut-to-length and custom end-machining up to 4,000 mm.
Clearance & Preload: Standard axial clearance or preloaded zero-backlash configurations.
Production Basis: Manufactured according to customer CAD drawings, physical samples, or technical specifications.
OEM/ODM: Full customization support for specialized dimensions, surface coatings, and packaging.
Applications: Precision positioning stages, compact robotics, semiconductor handling, and laboratory equipment.

Frequently Asked Questions: Sourcing Your SFK Ball Screws
1.Can you manufacture ball screws to our custom blueprints?
Yes. Whether you have a finished CAD model, a physical prototype, or a set of performance requirements, our engineering team provides full OEM/ODM services to deliver the exact fit your machine needs.

2.Should I choose rolled or ground SFK screws?
We offer both. Precision-rolled screws provide dependable motion at an economical price point, while precision-ground screws offer the tight tolerances required for semiconductor, optical, and medical equipment.

3.Can you replace a worn or obsolete ball screw from another manufacturer?
Yes. Send us your original part number, technical drawing, or sample part. We will measure the shaft journals, pitch, and nut mounting flange to supply an interchangeable replacement.

4.Can shafts be supplied ready for installation?
Yes. We supply custom shaft lengths up to 4,000 mm with precision-machined ends tailored to standard support units or custom motor mounts.

5.How quickly can I get a quotation?
Simply provide your shaft diameter, lead, stroke length, target accuracy grade, and estimated quantity. Our technical sales team will review your specifications and provide a detailed quote within 24 hours.

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