igus iglidur E7 lead screw nut

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Lead screws are used wherever precise adjustment is required. At high lead screw speeds, lead screw nuts made of standard plastics or metallic alternatives often reach their limits. The consequences are vibrations and noise. For this reason, igus has added the its iglidur E7 material to its range of lead screw nuts for high helix and trapezoidal lead screws. The nuts are specifically designed for high-speed applications with low loads and small installation space.

The iglidur E7 lead screw nut is made of a soft, high-performance polymer that permanently incorporates solid lubricants. There is no requirement for external lubricants such as oils and grease. The material reduces noise while at the same time acting as a vibration-dampening device with long service life. The in-house wear comparison test between iglidur E7 and the igus standard material for lead screw nuts showed that the iglidur E7 lead screw nut at 135 rpm and a load of 100 N has four times higher wear resistance on a high helix lead screw and 19 times better wear resistance on a trapezoidal lead screw.

In addition to the development of lead screw nuts made of high-performance plastics, igus has introduced ‘dryspin’ — an optimised high helix lead screw range matched to the igus lead screw nuts. The special features of the dryspin technology are the flat flank angle, asymmetric geometry and rounded tooth flanks. These ensure high efficiency and quiet, low-friction operation.