Re-sharpening of hob cutters

The lifetime of a hob cutter depends to a substantial degree on how carefully the regular regrinding intervals are observed.

Vibrations, the formation of burs, a deteriorating surface and an inaccurate profile are all factors showing that the hob cutters needs to be reground. If regrinding is made in good time, only very little material needs to be removed from the cutting face.

If the hob cutter has been in use for too long, a great volume of material must be removed during grinding. This carries the risk of overheating and of crack forming which render the hob cutter useless.

A correctly reground hob cutter provides a number of benefits during grinding:

  • greater profile accuracy
  • better surface quality
  • lower pressure uptake
  • longer service life



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