For your consideration, I have 3 Vintage Antique Furniture Dresser Casters Wood Swivel Rollers 1-1/2" Dia Lot 9.  The shaft is 2-1/4" long and tapers from 3/8" to 1/4" diameter.  This comes from a smoke free home.  I will be listing several vintage items so check out my other listings as I will combine shipping on multiple sales.