dryspin® lead screw technology in the rear bench seat adjustment
The electric rear-seat adjustment system can be found in vehicles in which seating comfort is held to be exceedingly important. The drive is responsible for adjustment of the rear bench seat and is often part of so-called memory seats. Important quality characteristics of the igus® solution include noise minimisation, quiet operation and a low coefficient of sliding friction of the material used. Additional lubrication is not necessary as solid lubricants have been integrated into the polymer.
In the development phase and during validation, the lead screw drive was exposed to unusual types of stress in the framework of crash tests. Endurance tests, in which amongst other things, wear and noise generation were tested in the temperature range from -20° to +80°C, were withstood by both the lead screws and the nuts from igus® without maintenance or any failures.What is the difference between dryspin® lead screw drives and those with standard geometries?
High efficiency and low wear
The patented dryspin high helix thread technology was developed by igus in 2013 and offers numerous advantages compared to conventional high helix threads. Due to the flat thread angle, it converts the exerted power efficiently into a translational movement. With properties and shapes matching the polymer nut and lead screw, dryspin thereby provides an even longer service life and more efficiency for high helix threads. Due to the rounded tooth geometry, the contact area between lead screw and nut is reduced, and the lead systems operate quietly and without vibration under load.
The larger spaces between the individual dryspin threads result in a higher share (factor 1.3) of tribologically optimised polymer in the threads. More wear-resistant material and higher levels of efficiency are crucial for a service life that is up to five times longer compared to conventional high helix threads. Take advantage of our machining service - we manufacture ready-to-fit lead screws based on your requirements. For this, use our lead screw configurator or send us a drawing. We will then provide a quotation.
More information
In the manual "dryspin ® screw technology - solutions especially suitable for the automotive industry", you will learn that:- More application examples for cars
- Different screw characteristics
- Different nut materials and geometry characteristics
- Screw experimental data and related questions
