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Unread 17-01-2011, 23:29
Tom Ore Tom Ore is offline
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Re: Mecanum Wheel Bearings

Quote:
Originally Posted by Team 3266 View Post
This is FRC Team 3266's first year at using mecanum wheels so we only purchased the wheels and not any of the mounting equipment because we didn't know. Now we have everything else ready to order except the bearings. For mecanum wheels do we need to order 2 flanged bearings for each wheel just like the standard wheel? Also what size ID do the bearings need to be for the KOP axles (long bolts if that makes more sense)? One last thing, for the sprockets mounted on the CIMpleboxes should we just order 2 more double KOP sprockets or 4 single slightly larger ones. Thanks!
You'll need 4 independent gearboxes for Mecanum wheels. The CIMpleboxes are pretty fast so you need a rather large sprocket reduction to go with them. This gets to be a bit of a complicated setup - with 4 CIMpleboxes and 4 sprockets, 4 chains to adjust, 4 Mecanum wheels to mount (not sure if you want live axle or dead axle.) If you read the various threads on Mecanum wheels, teams have had success direct mounting 6" Mecanum wheels to Toughbox Nano gearboxes (12.75:1 gives a pretty good speed.)
 


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