Lead screw drives are machine elements that convert rotary movement into linear motion (transmission threads). igus high helix and trapezoidal lead screws are available in three different lead screw materials (stainless steel, steel, and aluminium) and in combination with more than seven different lead screw nut materials. Friction-optimised iglidur materials allow quick, simple configuration and ordering of applications that require no lubrication or maintenance.

The dryspin technology we have developed features asymmetrical threads that extend service life and a flat flank angle that enhances efficiency. The geometry of the lead screw nut suitable for the threaded rod is variable, even in the standard item. There are geometries for everything from cylindrical designs to designs with flanges or spanner flats to clearance-reducing lead screw nuts, such as zero-backlash, low-clearance and anti-backlash lead screw nuts.

100% lubrication-free

100% corrosion-free

88% more lightweight

30% longer service life

iglidur^® J
High efficiency at all speeds
● High speed
● Low wear
● Best coefficient of friction

iglidur^® J350
High efficiency at all speeds
● For high temperatures
● Good coefficient of friction at medium loads

iglidur^® R
High efficiency at all speeds
● High wear resistance for low loads
● Low moisture absorption
● Vibration-dampening

iglidur^® A180
FDA-compliant for the food and pharmaceutical industries
● FDA-compliant
● For contact with food

iglidur^® J200
Best counter partner for aluminium:
● Low coefficient of friction and wear
● Long service life

iglidur^® E7
For high speeds
● Low loads (up to 200N)
● Speeds of up to 1,200rpm

iglidur^® W300
For heavy-duty applications (up to 5Mpa)
● High static strengths

The dryspin® technology

High efficiency and low wear

The patented dryspin high helix thread technology was developed by igus in 2015 and offers numerous advantages compared to conventional high helix threads. Due to the flat thread angle, they convert the exerted power efficiently into a translational movement. With properties and shapes matching the plastic 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.

Lead screw nuts

Lead screws

Accessories and special geometries

Wear test: new measurement Ds10x3

dryspin® technology beats competitors and trapezoidal thread

Wear is an important aspect of parts in moving applications. Wear-resistant plastics such as our high-performance iglidur polymers are the solution for minimising wear and increasing the parts' service life . Tribological properties and harmonised geometries suit drylin lead screw technology perfectly to all application areas in which good coefficients of friction and minimised wear are important.  The largest test laboratory in the industry takes up 3,800 m², and igus performs research and development and an extensive series of experiments there.
 
dryspin technology is also tested regarding its tribological properties in a variety of test series so as to minimise wear and maintenance intervals:
 
The evaluation of the wear test for the product with the dimensions 10x3 made of stainless steel showed that our dryspin® thread Ds10x3 can achieve a wear rate up to 25% lower, a service life up to 25% longer and greater efficiency compared to the competition and the trapezoidal thread Tr10x3 .