You can rebuild the spindles.
Remove the deck.
Remove the nut on the top of the shaft that holds the pulley on, remove the washer, pulley and spacer. Once it is removed the shaft can be pulled (or driven out with a brass or hard plastic hammer) through the bottom. If the bearings do not come out with the shaft. A long punch can be used to drive them out of the housing. Going through the top to drive the bottom out and the bottom to drive the top one out.

The replacement bearings are CD Part # 941-0919B and cost around $5 to $15 each depending one where you buy them.

And, the bearings can be obtained from a well stocked bearing supply house for a fraction of what you will pay if you try to source them from a Cub dealer. You will only need to be able to read the standard bearing number found on the bearing after you get the bearings out.

hippy,

Thank you for your very prompt response, detailed procedure and suggested pricing. This will save me a great deal of money, especially when my local repair service wants me to write a blank check @ $55 per hour for labor.

mownie,

Thank you for suggesting a local bearing supply house. However, I also located the bearings on eBay for as little as $4.49 with free shipping. It would cost me more than that to drive into town.