DFU3204 Ball Screw

DFU3204 Ball Screw

Product descriptions

The DFU3204 Ball Screw Assembly is an extreme-duty linear motion component engineered to deliver the ultimate combination of structural rigidity and high-resolution control.

Featuring a massive 32mm shaft, this assembly provides a vibration-free platform capable of withstanding heavy loads without deflection. It is paired with a fine 4mm lead to achieve ultra-high resolution (0.02mm) and a preloaded Double Nut system that ensures absolute zero-backlash positioning. The DFU3204 is the premium choice for the most demanding industrial applications, including high-accuracy surface grinders, heavy Z-axis slides, and precision jig borers where unwavering stability and fine control are paramount.

Model: DFU3204

DF (Double Flanged): Indicates a Double Ball Nut configuration equipped with an integrated mounting flange. This design allows for internal preload to eliminate backlash.
U (DIN Standard): Designates compliance with the DIN 69051 B mounting standard. Features a compact, trimmed flange profile for compatibility with standard European supports.
32 (Diameter): Nominal Shaft Diameter is 32 mm. This robust profile provides exceptional column strength, virtually eliminating deflection even in heavy-duty vertical Z-axis applications.
04 (Lead): Screw Lead is 4 mm. The nut advances linearly by 4 mm for every single revolution, providing high mechanical resolution and torque multiplication.

Key Advantages

Superior Mechanical Resolution:
Utilizing a standard stepper motor, the 4mm lead yields a resolution of 0.02mm per step-a 20% improvement over standard 5mm pitch screws. In precision grinding applications, this enables ultra-fine in-feed rates, minimizing "step ripple" and producing superior surface finishes.

Ultimate Dynamic Stiffness:
The robust 32mm shaft provides the necessary mass and structural inertia to effectively dampen vibrations, which are the primary adversary of precision. Combined with the Double Nut preload, which eliminates backlash, this creates a rigid mechanical link between the motor and the load, ensuring motion fidelity.

Enhanced Safety (Back-Driving Resistance):
The combination of a fine 4mm lead on a large 32mm diameter results in an extremely shallow helix angle. This geometry creates significant internal resistance against back-driving. While a motor brake is always recommended, the DFU3204 is naturally resistant to "free-falling" under gravity, adding a critical layer of safety for heavy vertical lifting applications.

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