Patent ID: 8317433

Claim:
A cutter head comprising a bar cutter head ( 20 ) for frontally receiving multiple bar cutters of a first bar cutter set, the bar cutter head ( 20 ) having n receptacle openings ( 25 . 1 - 25 . 6 ) for receiving n bar cutters of the first bar cutter set, the n receptacle openings ( 25 . 1 - 25 . 6 ) are all situated along a first concentric cutter head nominal circle having a first cutter head nominal radius (r 1 ) corresponding to milling a first spiral-toothed bevel gear ( 11 ) using these n bar cutters in the single indexing method, wherein the bar cutter head ( 20 ) additionally has at least m receptacle openings ( 26 . 1 - 26 . 6 ) for receiving m bar cutters of a second bar cutter set, the m receptacle openings ( 26 . 1 - 26 . 6 ) are all situated along a second concentric cutter head nominal circle having a second cutter head nominal radius (r 2 ) corresponding to milling a second spiral-toothed bevel gear using only these m bar cutters in the single indexing method, and n and m are whole numbers greater than two and the second cutter head nominal radius (r 2 ) is greater than the first cutter head nominal radius (r 1 ).