W2/090 Spring washer  for maincollet closing compensation for Wickman multi-spindle automatic lathe 1".
The function of the spring washer is to maintain the same clamping pressure of the main spindle collet during possible variations in the external diameter of the bar.
This spring washer, make a stable and constant bar clamping force is ensured throughout the machining process.
It is a very important wear component, subject to breakage due to continuous frontal flexing.