My earlier input was under the false assumption this was the outer bearing.
Inner bearing would be OK with some loctite, though may be a little hard to remove.
609 (green) is great if the gap is very small, under 0.006".
If the spindles are already worn you may need something like 660 to fill a larger gap up to 0.020".
There are other loctite products for filling various size gaps, just read the literature and pick the right one for your exact situation.
This is the 609
http://na.henkel-adhesives.com/industrial/product-search-1554.htm?nodeid=8797928194049Here is a list of other retaining compounds along with instructions.
http://na.henkel-adhesives.com/industrial/retaining-compounds-14963.htmNote that for ease of disassembly "If disassembly tools are not available, apply localized heat to approximately 250°C, disassemble while hot."
Still, if you had a replacement spindle that would be a longer term solution.
Grigg