Worm Gear Motor ZD1735 20-100Nm 30 and 40 RPM
These are traditionally built and used for car wipers, but they can also be run as a highly efficient worm drive motor.
This particular unit has extremely tight tolerances (zero backlash) and an ultra smooth motor and gearbox. It is all metal construction.
While it is operating you can barely hear it, that's how quiet the motor and gearbox are.
This unit has a base rating of 20nM, and will overdrive to a maximum (and stall at) 100nM. It is an extremely powerful motor for its small size.
It operates from 12V and has 2 operational speeds (either 30 RPM or 40 RPM - User selectable speeds)
These are a good choice if you are on a budget simply for the fact you can overdrive them with little more than some extra current. The worm will actually stall at 100Nm but it will only hold torque to about 80% of its rated load (so between 18-20nM).
There are a few different manufacturers that make this motor and gearbox combination with the same name (or similar), but we believe we've found the best. This is an extremely well built unit and represents great value for the cost.
To connect these as a normal worm drive, hook the Negative to the chassis of the unit, and either the Green wire or Blue wire for low or high speeds.
Technical Parameter:
| Rated Voltage: | 12V-13.5V |
| Rated Power : | 180W |
| No load current: | 2.5A/4.5A |
| Loaded Current: | See Chart in pictures |
| No-Load Speed | 30/40 RPM |
| Loaded Speed | 25/35 RPM |
| Stall Current | 65A Max |
| Stall Torque | 100nM |
Wiring is as follows:
Fast RPM:
Battery (+) goes to the black
Battery (-) goes to the white
Slow RPM:
Battery (+) goes to the black
Battery (-) goes to the blue
to reverse the polariity, simply exchange the position of the battery postivie for the battery negative
There isnt any reason to use the yellow or red wires.
