Ready-to-Install Precision Ball Screws SDA-VZ with Machined Ends and Support Bearings

With the SDA-VZ series, THK offers ready-to-install precision ball screws featuring standardized machined shaft ends and matching support bearings. This significantly reduces design and assembly time, simplifying the integration of these proven ball screw systems into various applications.

Thanks to a special ball circulation design with tangential ball return, the SDA-VZ series enables rotational speeds of up to 5,000 min⁻¹ (DN value: 100,000) while maintaining a stable torque output. This makes the series ideal for applications requiring both high dynamics and precision.

Another advantage is provided by the newly introduced support bearings EK-L and EF-L, which compared to the previous support bearings, allow a lower height of the spindle's center axis and enable the selection of smaller sizes for linear guides.

In combination the SDA-VZ ball screw features a nut with an outer diameter up to 30% smaller, this contributes to more compact systems and machines across a wide range of applications.

To meet a wide range of customer requirements, THK offers the SDA-VZ series in a total of 230 sizes with screw diameters ranging from 10 to 25 mm – available with either compact nut designs or outer dimensions in accordance with ISO 3408.

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