I guys. I need some advice and an opportunity to vent.
First, the advice. My front hub bearings are getting noisy. The car has 180,000+ miles, but I’ve never had a wheel bearing wear out on le before, so I kind of feel it should not have. The below “vent” will explain what I feel happened. However, I have a choice of OEM bearings, Beck-Arey bearings, or Timken bearings. I know from my years in manufacturing that Timken is perhaps one of the most widely used bearing providers for hi-reliability and aerospace bearings. Beck-Arney I’ve not used before. I’m considering going with the Timkens/ Any thoughts? Any sugestions?
Now, my gripe. The basics of selecting bearings have been known since the industrial revolution. Roller bearings withstand far more load (static, dynamic, and impact) and last far longer in high load applications than ball bearings. However, ball bearings have inherantly lower rolling resistance than roller bearings. Every wheel bearing I’ve seen before was a roller bearing. However, my research disclosed that Toyota used dual ball bearings in this application. According to the Toyota design drawings it was for the low rolling resistance. While I cannot access the mind of the engineers involved, it strikes me as highly probably that this decision, this compromise, was implemented in response to a mandate to reduce rolling resistance as much as possible to contribute to compliance with the ever-tightening CAFE standards. In short, I suspect that the manufacturers have now begun to make reliability compromises due to the mandate of the EPA, which will never stop endlessly tightening requirements.
Thanks for letting me let off a bit of steam.
Now, any suggestions on bearing selection?