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Author Topic: understanding datasheets  (Read 1550 times)

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Offline darkloafTopic starter

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understanding datasheets
« on: September 29, 2008, 06:07:03 AM »
Hey,

I am just about to start cad-ing my robot, and I'm having some troubles understanding my motors datasheet.
http://www.active-robots.com/products/motorsandwheels/stepper-motors/datasheets/103h546-0440.pdf

What unit are these measurements in? For example the motor bore is listed as 5-0.013. What the devil does that mean?

Cheers,

Nick Deboar

Offline Ro-Bot-X

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Re: understanding datasheets
« Reply #1 on: September 29, 2008, 06:14:28 AM »
The units are milimetres. 5-0.013 means the diameter is 5 milimetres and the -0.013 is the tollerance of machining, so the axle is 13 micrometres less of the nominal value, so it will mount with little effort to a 5 gear.
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Offline darkloafTopic starter

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Re: understanding datasheets
« Reply #2 on: September 29, 2008, 07:55:26 AM »
Great, cheers!

 


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