Looks like I am not smart enough to get Cognito to snap rotations.
The phase and offset options are for linear changes and not rotation.

Doing it by hand is not so bad, you only have to set 10 keyframes.

Use the spin modifier on the first wheel, set it to 1 revolution per second.

Keyframe the second wheel on each second time mark to rotate 36 degrees (using "angles" as the rotation controller will make them cumulative) out to the 10 second mark.

Set the tweeners between each key to "discreet" to have the rotation snap & not roll in.

Once you do the second ring you can duplicate it however many times you need to fill your odometer and then just offset the copied keys to have the digits snap at the right times.

 

http://3dsplash.com/WayneK/test/Draw-tmp/spin-2.mov

wayne k
guam usa