Does anyone know the pitch and pressure angle of the spur gear on the Valeo window motor.
The gear on that motor is a 20 Degree Pressure Angle gear.
The gear is 12 Tooth, 16 Diametral Pitch, Stub, 20 Degree Pressure Angle,
The gear is a “Stub” tooth gear, but it can mate okay with a full depth gear if you increase the center distance a bit from the theoretical number. Another option is to put shave the OD of the standard gear by .4"/DP, which in this case is .4/20 or .020"
If you are making your own gear, then of course, just make the gear a stub gear to begin with – (.8/DP for the addendum, 1/DP for the dedendum).
Thanks Joe…I thought it was a 16 pitch and something not available from Small Parts. Hopefully, FIRST will reinstate the “any size and any amount of sprockets, gears, and pulleys” rule for 2002.
Yes the gear is a 16 DP gear.
I said that in one spot but missed it in another.
The OD of a standard gear should be cut .4"/16 = 0.025" in order to mate properly with the stub gear on the Valeo window motor.