DFU6320 Ball Screw

DFU6320 Ball Screw

Product descriptions

The DFU6320 Ball Screw Assembly is an ultimate-duty linear motion component engineered for monumental industrial applications requiring the maximum combination of load capacity, structural rigidity, and extreme linear travel speed.

The model designation "DFU" indicates a preloaded Double Nut configuration with a flanged mounting interface and a universal internal ball recirculation system. This design completely eliminates backlash, ensuring vibration-free precision under colossal loads. Featuring a massive 63mm nominal shaft, the DFU6320 provides unmatched column strength to resist buckling. Paired with an extreme 20mm lead, it delivers rapid traversing speeds, making it the definitive solution for critical, high-dynamic systems such as massive automated transfer lines and ultra-large gantry robots where speed and stiffness are simultaneously essential.

Key Features & Engineering Specifications
1.63mm Diameter Shaft (Extreme Stiffness):
The massive 63mm solid steel shaft provides the highest standard column strength in the DIN series. This robust profile is capable of spanning 6 to 8 meters unsupported while maintaining strict straightness tolerances and resisting gravitational deflection (sag).
2.20mm High-Speed Lead:
The nut advances 20mm for every single revolution. This steep helix angle facilitates rapid linear motion even at lower rotational speeds, effectively mitigating critical speed vibrations (whipping) on long axes.
3.Zero-Backlash Double Nut:
Utilizes two nut halves tensioned against a precision spacer (Preload). This configuration mechanically eliminates all axial play between the screw and nut, ensuring instantaneous engagement and high rigidity during direction reversals.
4.Massive Static Load Capacity:
Rated for static loads exceeding 20 tons (233 kN). The assembly incorporates large load-bearing balls (typically 3/8" / 9.525mm) to maximize stress distribution and withstand severe industrial shock loads.
5.DIN 69051 B Standard Flange:
Despite its industrial scale, the mounting flange adheres to standard DIN geometry (flattened top and bottom). This standardized design simplifies integration into existing machine housings and brackets.

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