When processing workpieces, "twist structures" occur. These are periodically occurring characteristics on rotationally symmetrical surfaces — at the point where the shaft meets the sealing lip. This compromises the sealing function between the shaft and the sealing ring. A distinction is made between macro and micro-twist depending on the characteristics and occurrence. Jenoptik form and roughness measuring systems can also be used for twist measurement.
Our measuring systems do not only detect standard-compliant measured data for roughness and form — the form measuring instruments can also be fitted with a roughness probe so that three-dimensional twist structures can be captured. The roughness measuring systems require a rotational device. This allows key values to be calculated based on specific twist parameters. The twist measurement technology from Jenoptik meets the criteria of the Mercedes-Benz standard MBN 31 007-7 in its revised version of 2009.
TwistLive® Twist Measurement Process
The TwistLive® quick twist test is also based on the Daimler standard MBN 31 007-7. This test uses a specially developed evaluation method in which measuring times are shortened by up to 75 percent, so you can save time and resources. The results of the twist measurements can even be forecast in real-time during the measurement run.