Method for manufacturing a worm shaft for a gearbox and gearbox incorporating same
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United States of America Patent
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Jun 8, 2004
Grant Date -
Nov 20, 2003
app pub date -
May 15, 2002
filing date -
May 15, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A method for manufacturing worm shafts for a gearbox. The method comprises using a common worm shaft blank to produce worm gears for all of the gear ratios of a family of gearboxes. The common worm shaft blank has a defined outer diameter. The method may comprise establishing an axial pitch to enable the worm shaft to be adapted with a thread to produce a desired gearbox ratio using the common worm shaft blank. The method may comprise adapting the common worm shaft blank to produce the worm shaft thread for the desired gear ratio. The system comprises a family of gearboxes having a plurality of gear ratios. The worm shafts for each of the gearboxes is adapted from a worm shaft produced from a common worm shaft blank. The worm shafts may all have the same outer diameter at the thread.
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