180 to 240 foot pounds is for the axle nut on the one-piece bearing and hub assembly on a 4wd truck or front-wheel-drive car. That torque is critical in preventing the bearing from becoming noisy.
I never used a torque wrench on tapered bearings but 50 foot pounds would seem to be about the same as "common sense". Failing to back the nut off to the nearest cotter pin hole can leave the rollers too tight so they squeeze the grease out rather than let it run in between the axle and rollers. I've run into a few people who think tight is good and tighter is better.
Hi guys. I've been following this to learn what is meant by "plastic" bearing. If you mean the outer cage is plastic, that is common. It just holds the rollers in position. Are you saying that causes problems or am I missing something else?
Wednesday, January 4th, 2012 AT 1:36 AM