Borchik wrote:
Just a word of advice, a lot of people will argue with this but if you know any Bearing Engineers, (which I am lucky or unlucky enough to know one, depends on the day ) when people tighten bearings on their trailer and leave them a touch on the loose side that is incorrect. Bearings must have preload to last properly. The amount depends on the size but they actually should have some drag on them when you adjust them with the wheel off the ground, the wheel should not spin 10 times when you lightly spin a wheel checking preload.
I agree with the requiremnet for some drag but unfortunately the castelated nuts often make the bearing preload too tight and you neeed to back it off to the next position that you can get the cotter pin through and it may be looser than you would like.