igus has just launched a trapezoidal thread disc (TR-Disc) for the zero-backlash setting of the nuts during fitting. The functional principle is as simple as it is effective: two nuts are braced against one another. The manually set state is then fixed by screwing. The TR-Disc has long holes which allow the fitter to align the set position exactly to the counternut. This makes the TR-Disc an easy-to-handle solution for setting backlash on trapezoidal threads. As a positive technical side effect, the TR-Disc lengthens the thread and strengthens the flange. The result: greater load-bearing capacity with the same spindle size. Furthermore, igus allows users to check the long service life of plastic screw drives: the service life of all products can be calculated online with a research programme. It saves users having to carry out lengthy tests. In addition to service life calculation, the online tool helps users to find and configure the products they need.