Hello community,
I would like to ask about what these parts are called.
They are part of most moving heads.
While I know that the two connecting with a timing belt are most likely "pulleys", the larger one has a 3cm-diameter-bearing in it, and a hole for it to fit in.
I searched for exactly that but found no results. I don't even find a bearing that size.
The large "pulley" is about 6cm in diameter.
The other parts I also looked up using the Google image search function, mentioned "moving head" in the search too. No results that match it.
One of them the stepper is screwed into tightly, the other has a hole and bearing to lead out the cables from the tilting head.
About 4cm in diameter, the hole is about 1.5cm in diameter.
So I am lastly coming to you in the hope that you could give me an answer.
Is this not something one could buy as a single customer?
Okay, so maybe these are specifically manufactured for this device / by this manufacturer, and not sold publicly.
I hoped to maybe find a general name of part, not a specific number. Just the classification where it fits into, would be good too.
Sure, but the two pieces used to mount to the tilting head of the moving head are not connected by timing belts by any means. They are screwed into the arms of the moving head, which holds the head. One has a bearing and a hole to feed cables through, the other is tightly screwed on a stepper motor shaft. Is this still a pulley?
Pic #1 looks like a "bushing" to directly link the stepper shaft to a frame. It looks like it adapts the stepper to some bolthole pattern on whatever it assembles to.
Pic #2 looks like the same bushing as in pic#1, plus a bearing in a bushing to provide the through-hole wires in pic #3.
Pic #3 has toothed pulleys/gears that adapt the stepper shaft to the pulley, and a specialized toothed pulley/gear that adapts the pulley to the through-hole-pass-through.
Bushings, gears and toothed pulleys are the basic building blocks of rotating machines. Depending on your application, you could perhaps 3d-print many of these using customized files from one of the 3DP sites, adding extra holes or bolt-patterns.
I guess milling etc. or alternatively 3d printing it is indeed possible. Then, the deep-grooved ball bearing could be brute-force pushed into it to hold in place. I read professionally they use a hydraulic press for that.
Thank you (everyone) for your answers.
Pic #3 in your post #3 looks like the main body parts are made of bent 10-20 gauge sheet metal. You wouldn't need much of a hydraulic press to fit bearings into that--maybe judicious hammer tapping, a vice, or a screw clamp.
