Gear Train Alignment
Gear Train Alignment
(OP)
What is the proper way to align a gear train to keep backlash to a minimum and extend the life of the gears? There are two gears in the assembly, one set about a foot higher than the other. Both gears contain the same overall specs including pitch diameter, pressure angle, etc... Maximum backlash < .045





RE: Gear Train Alignment
RE: Gear Train Alignment
RE: Gear Train Alignment
RE: Gear Train Alignment
RE: Gear Train Alignment
min backlash. The same maybe true of the pinion. Set the
feeler gage into the space and force the centers together.
Often a suggested min backlash is specified and that would
be the thickness of the feeler gage.
RE: Gear Train Alignment
http://www.sdp-si.com/D190/HTML/D190T47.htm
RE: Gear Train Alignment
RE: Gear Train Alignment
With parallel axis gears, backlash is usually designed into the gear profile, since it is not usually practical to adjust the pitch centers at assembly. Backlash is usually measured with a dial indicator, and should be taken at several points around the mesh to account for tooth-to-tooth errors.
With non-parallel axis gears, backlash (as well as contact pattern) can be adjusted somewhat by shimming.
Good Luck.
RE: Gear Train Alignment
http://www.wmberg.com/catalog/pdf/b00k2-16.pdf
Look at page K12, table E.
-agdyp
RE: Gear Train Alignment
RE: Gear Train Alignment
RE: Gear Train Alignment
the Min & Max center distance according to Dudley is the following.
the stackup of center distance mounting bores, the thickness of the teeth, The pitch diameter runout.
from my experience the the machine tolerances of the housing mounting bores,the mounting shafts, and the precision of the gears will affect alignment.
in other words the application will dictate the precision required to maintain the all of the above requirements.
and it must be designed and machined up front, and must be inspected accordinly. so it's more than just backlash,
it the overall attributes of the gears train.
not a so simple answer:/