Arbor Press

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Frequently Asked Questions...

Press fit for a spur gear?

i'm essentially making a half-ton arbor press and i need to press fit the spur gear which has a half inch bore to the shaft that connects to the handle. its gonna see some decent torque, so i was thinking like .005in. i have both a furnace and freezer at my disposal. what do you guys think?
EDIT: i would key it, but the gears i have available aren't keyed and i'd just assume save the hundred some odd bucks it would cost to get the shop to add one..


Best Answer...

Answer:

0.005 sounds way too big

see here

http://www.eminebea.com/content/html/en/engineering/bearings/fitting.shtml

adding a key would be the best way - you could set screw it in place as well.

ps - i can't imagine adding a key costs more than $50 if you've got a relationship with any tool shop.