SFU4005 Ball Screw

SFU4005 Ball Screw

Product Descriptions

The SFU4005 Ball Screw occupies a unique niche in the linear motion market. Unlike standard 40mm models that prioritize high-speed rapid traverse (typically utilizing 10mm or 20mm leads), the SFU4005 is engineered specifically for maximum force and structural stability.

By pairing a fine 5mm lead with a massive 40mm shaft, this assembly empowers machine builders to manipulate multi-ton loads with the fine resolution typically reserved for precision instrumentation. It is the ultimate solution for applications where heavy lifting capacity and microscopic positioning accuracy must coexist.

Key Engineering Characteristics
1.High Mechanical Advantage (Torque Multiplication):
While 40mm screws typically utilize 10mm or 20mm leads, restricting the pitch to 5mm creates a significant mechanical advantage. This gear-reduction effect allows the screw to act like a mechanical jack, generating massive axial thrust using a relatively small motor. Ideally suited for heavy lifting, it functions effectively as an electric replacement for hydraulic cylinders.

2.Buckling Resistance (Column Strength):
For vertical applications requiring long strokes (e.g., >2 meters), smaller shafts (25mm or 32mm) are prone to bowing or buckling under compressive loads. The rigid 40mm shaft provides superior column strength, maintaining straightness and stability under heavy static loads, making it ideal for vertical Z-axis lifts.

3.Fine Positioning Resolution:
Despite its massive structural size, the 5mm pitch retains a fine resolution of 0.025mm (using standard stepper motors). This allows for precise, micro-adjustments on heavy machinery, such as industrial presses or precision grinding heads.

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