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-   -   mecanum wheels. (http://www.chiefdelphi.com/forums/showthread.php?t=82549)

gabi0407 13-02-2010 07:16

mecanum wheels.
 
we bulid our mecanum wheels but we don't know how to put the Wheel bearings.
what can we put there that the Wheel bearings will not slip into ther wheel?

scottydoh 13-02-2010 08:26

Re: mecanum wheels.
 
You'd need flange bearings.

But, I have to ask...Are you direct driving the wheels? Or chain Driving? Mecanums are usually set up direct drive off of the gearbox, and thus you don't need breaings only a hub with a keyway. Thats the way we're doing it.

gabi0407 13-02-2010 08:42

Re: mecanum wheels.
 
thanks.
when you meen direct driving you meen that the wheel is dicetly on the shaft of the of toughbox?
and if it is like that isn't this dangerous for the toughbox?

scottydoh 13-02-2010 09:17

Re: mecanum wheels.
 
Correct. Direct drive would be directly connected to the output shaft of your transmission. And no, this won't hurt the transmission, this is what its designed to do.

Oh, and if you are chain driving, your going to need a pretty big sprocket spacer in order to clear the wheels.

gabi0407 13-02-2010 09:31

Re: mecanum wheels.
 
thank you very much.
yes i know i need some big spacer and it is not a problem to get but i steel prefer direct driving.
can i use the regular toughbox from the kit of parts
is this bearing will be fine http://andymark.biz/am-0077.html
and scott thanks you help me a lot

scottydoh 13-02-2010 10:02

Re: mecanum wheels.
 
No problem, thats what we're here for :]

And yes thats the correct hub for the Kit of Parts Toughbox. I don't know if it makes a difference or not, but my team is using the 8" mecanum wheels this year, and we choose to use 2 hubs per wheel (on on each side) for added strength to the side walls of the wheels.

If you have any other questions feel free to message me on here.

gabi0407 13-02-2010 10:20

Re: mecanum wheels.
 
thanks.
for now i have no more questions.

joek 16-02-2010 13:54

Re: mecanum wheels.
 
Quote:

Originally Posted by scottydoh (Post 919150)
Correct. Direct drive would be directly connected to the output shaft of your transmission. And no, this won't hurt the transmission, this is what its designed to do.

Oh, and if you are chain driving, your going to need a pretty big sprocket spacer in order to clear the wheels.

no, they're usually chain drive, no one uses directdrive on their wheels that i know of

Akash Rastogi 16-02-2010 14:01

Re: mecanum wheels.
 
Quote:

Originally Posted by joek (Post 921312)
no, they're usually chain drive, no one uses directdrive on their wheels that i know of

Direct drive does NOT mean directly from the motor. It means it is directly driven off of the gearbox output shaft. Many teams do this, even with mechanum wheels.

BEEKMAN 16-02-2010 14:50

Re: mecanum wheels.
 
Quote:

Originally Posted by Akash Rastogi (Post 921317)
Direct drive does NOT mean directly from the motor. It means it is directly driven off of the gearbox output shaft. Many teams do this, even with mechanum wheels.

Yeah, the only time we've done a chain was last year. Chains are more common on non-mechanum types, because you likely need to control two wheels with one motor

scottydoh 16-02-2010 15:51

Re: mecanum wheels.
 
Quote:

Originally Posted by Akash Rastogi (Post 921317)
Direct drive does NOT mean directly from the motor. It means it is directly driven off of the gearbox output shaft. Many teams do this, even with mechanum wheels.

Agreed. I even specifically said transmission numerous times. Oh well...

gabi0407 16-02-2010 17:18

Re: mecanum wheels.
 
i did this like scott say and it is works perfectly.

scottydoh 16-02-2010 19:28

Re: mecanum wheels.
 
Quote:

Originally Posted by gabi0407 (Post 921448)
i did this like scott say and it is works perfectly.

Awesome, glad to hear everything worked out for you guys!


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