The CNC Generating and Profile Grinding Machines
The most efficient grinding method for gears is CBN generating grinding. The continu - ous contact of grinding worm and gear eliminates non-productive idle times. CBN allows cutting speeds of more than 70 m/s. They are achieved with a small tool di-ameter of 140 mm and high spindle speeds up to 12,000 rpm resulting in very short cycle times
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