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I just received an email from a reliable source as follows -
Worm Cycle Periods
Earth Sidereal Day = 86,164.1 sec
Worm Cycle Period
Sidereal Day (sec) divided by number of main worm drive ring teeth
HEQ5
86,164.1 / 150 = 574 sec or 9.6 min
EQ6-R
86,164.1 / 180 = 479 sec or 8min
EQ8-R
86,164.1 / 435 = 198 sec or 3.3min
NB: The above worm period cycles do not factor in any periodic error or inefficient worm gear meshing
Martin
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