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Good Gears Start With Good Blanks - November/December 1987

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Archive > 1987 > November/December 1987 > Good Gears Start With Good Blanks

The article "Good Gears Start With Good Blanks" appeared in the November/December 1987 issue of Gear Technology.

Summary
The quality of the finished gear is influenced by the very first machining operations of the blank. Since the gear tooth geometry is generated on a continuously rotating blank in hobbing or shaping, it is important that the timed relationship between the cutter and workpiece is correct. If this relationship is disturbed by eccentricities of the blank to its operating centerline, the generated gear teeth will not be of the correct geometry. During the blanking operations, the gear's centerline and locating surfaces are established and must be maintained as the same through the following operations that generate the gear teeth.

Keywords
gear blanks, hobbing, shaping

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