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looking for a long gear/extruded spur gear

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dequo:
I need a long gear for a project, im sure theres a name for what i want but i havent been able to find anything.

It needs to be like a cylinder with teeth going lengthways, the opposite of a worm gear almost. the rest of the project can be adapted to its pitch diameter etc. Preferably a diameter of 35mm and about 10cm long.

i have though of getting it custom made but im sure somebody would sell something like this..

GeoffS:
Look up timing belts or pulleys and you/ll find something like this:

is this what you're after?

dequo:
yeah pretty much that but it needs to be able to mesh properly with a spur gear. the thread on that looks more rectangular

RayJones:
Does the word "pinion" help?

DaveW:
How about this,
http://www.hpcgears.com/products/toothed_bar_stock.htm

HPC are very good, had them make some custom gears for me for robot wars, was surprisingly cheap

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