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Monitor Rotation using Timing Belt

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kahlid74:

I not super knowledgeable about timing belts so I was hoping to get some help finding two timing belt pulleys I can use.  I need an 8MM (5/16 in) bore Timing belt pulley for my stepper motor and a 3/4 in. Timing belt pulley for my shaft.  I've found some with both 5/16 and 3/4 on McMaster-Carr but they seem to be for different size timing belts with different pitch.

Anyone know where I can find some these with the same pitch and sized timing belt?

TopJimmyCooks:

mcmaster and grainger sometimes list the supplier of the items they sell.  look at the manufacturer and track them down directly.  they will know what sizes are available, etc.  I did this with pogo pins a while back, had to go right to the maker but they had what i needed.

it could well be easier to find a belt you can live with and then find sheaves (pullies) to match, more variety of those around. 

kahlid74:

Following your advice I pushed to manufactuer's and found these guys have 5/16 and 3/4 in bore L series pulleys with 3/8" pitch.  So it should be good to go ordering these.

http://torquetrans.com/pulleys/timing-pulleys/l.htm

This is exciting.  I've been on stand still looking for pulleys.  My arduino code is almost ready too!  Soon, there shall be a rotating 42" TV in the near future.

TopJimmyCooks:

glad to be of service. 

kahlid74:

Just another update in-case anyone else ever needs them, I called them and got directed to Quality Transmission Components and they have boat loads available.  So yeah, awesome sauce - http://www.econobelt.com/e-store/Pulleys.htm

So once pulleys arrive try out Arduino code and then I'll start a project thread about building the cab lol.  It's going to be a monstrosity.

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