Cut the bottom 2 inches off a standard size soft drink or beer can. It will be a snug slip fit over the snout of the hub. At least until you find the right size caps it will keep dust out of the bearings temporarily.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!