Denso Window Motor Gear Box - Legal to use?

[Hawiian Cadder]

Worm gears don't actually prevent the motor from being back driven. In order to find how much force it will resist, take the resistance of the motor times the gear reduction divided by the efficiency of the gearbox. If this torque is greater than the rating for the gearbox be wary as it will shred the gears before the motor is back driven.

[Al Skierkiewicz]

The rule specifies that the motor and gearbox are one piece. They cannot be separated.

"Note that for the Window motors and the AndyMark gearmotor, the gearboxes are considered integral to the motor"

This is unlike the Globe motor where the gearbox was considered in some years, to be removable.

[apalrd]

In the past, we took a COTS Bosch window motor (nothing like it was ever in the KOP), took the actual motor off, and made an interface to a Fisher Price motor on the mill.

Since it used the US Car standard window motor interface, it was a drop in replacement for the Denso in terms of bolt pattern and shaft spline.

(unfortunately, I don't have a picture with me)