I'm already using a Torrington bearing on top- - - -and a bronze bushing down on the bottom where there's plenty of splashed oil to keep it lubed. That allows the gap between the trigger and the reluctor teeth to be minimized for the best signal generation without worrying about making any physical contact.
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!