Quote Originally Posted by chris del

Where were you going to use the pillow blocks? You may or may not know that the insert bearing has a spherical outside diameter allowing it to self align in the housing. This makes it impossible to keep the shaft to a right angle of where the pillow block is mounted too. Unless you use 2 pillow blocks per shaft. A better option would be to machine a housing to house a bearing with a cylindrical outside dia as in most band saws.
A spoked cast iron v-belt pulley would make ideal band saw pulleys providing you can have the "v-groove machined off.
You could use a loose V-belt for drive tires. Most of the small bandsaw mills use this arangement. A lot have shifted to a poly. drive belt instead. Do a search for Bill Rakes web site and check out the homemade bandsaw mills for some ideas.