How to mount the stepper motor and lock the gear?

Other Hardware Motors, Mechanics, Power and CNC
1

I am a beginner to motors. I am going to do a project where a stepper motor will be mounted to gear from the top so that it would lock and do a rotation at the same time. The motor will be mounted to a box from sides or top . The motors I am going to use are these ones: FAULHABER Series AM1020

However, I don't know how this motor can be mounted to the. It doesn't look like the other stepper motors that I've seen in other projects.

2

Mrs_Dalloway:
a stepper motor will be mounted to gear from the top so that it would lock and do a rotation at the same time.

I don't understand that. It reads as if the motor is not normally connected to the gear but occasionally it connects to it and does a rotation.

Looking at the motor in your link I would expect that the normal procedure is for the gear to be a tight press fit on the shaft.

AFAIK Faulhaber motors are very expensive so why not get them to earn their money by seeking advice from Faulhaber?

...R

3

My problem is, I don't know how this motor can be mounted to a plate, let's say. It doesn't have any holes or etc. to use motor bracket. Or maybe I am just missing something. I am looking for something like this:

4

Various ideas spring to mind.

  • Get a flat plate with screw holes in it and epoxy the motor to the plate
  • Mount the motor in a tight tube that is attached to whatever.
  • Use the type of clip that is used to fix water pipes to a wall.
  • Make a 3-D printed mounting bracket.
  • Check if Faulhaber supplies mounting brackets?

...R

5

Mrs_Dalloway:
My problem is, I don't know how this motor can be mounted to a plate, let's say. It doesn't have any holes or etc. to use motor bracket. Or maybe I am just missing something. I am looking for something like this:

The datasheet clearly shows in the dimensional drawing the mounting screwthread is M5.5/0.5 and 1.53mm long.

You'll need an M5.5/0.5 tap - good luck finding that, its a rare size.

You know this motor is extremely small and very weak? 1.6mNm is a tiny torque.

6

The data sheet shows an M5 thread around the spindle - I guess you use that to mount it .

7

Worm gear transmissions for stepper motors work great for self locking.

Lots of versions available for NEMA sizes, not sure about the motor your choosing.

8

hammy:
The data sheet shows an M5 thread around the spindle - I guess you use that to mount it .

Definitely M5.5 x 0.5, not M5
Commas are used for the decimal point in Germany, "M5,5x0,5" thus means M5.5 / 0.5mm pitch (ie fine thread)

M5.5 is not a common (or even official) isometric size I believe - but you can find taps for sale.

Talk about vendor lockin! M6/0.75 would have been just dandy, but oh no. Mind you in the world of precision
micro mechanical engineering pretty much everything is bespoke...

9

Yep , my fault 5.5.