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im not gone dispute your friends findings billet , i have never seen a wheel dyno , but i do under stand how a tapered bearing works , and looking at it from jkings example , i dont see what the sleeve would have to do with reduced friction on a tapered bearing when you are nearly constantly loading the out side brg on the right and the inner brg on left , now i could understand this working with a ball brg , but just cant see it.....
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With the bearings tightened against the sleeve (assuming the sleeve is machined 100% parallel) the bearings are now 100% true and held 100% parallel to each other. Where if there wasn't a sleeve there, the bearings can tilt or angle whatever the clearance between the snout OD and the bearing ID can allow. So when loaded they could tilt 0 to 3 degree's (making up a number here) so you could have the bearings angled as well as the hub angled thus the bearings and races not 100% mated properly. With the spacers the bears are 100% parallel and true and can't (not a nice word)(not a nice word)(not a nice word)(not a nice word) sideways do to the added length between the bearings and the snout (3/4" width on bearings vs clearance to snout over the 2 bearings together locked to spacer vs the clearance to snout).Originally posted by fastford View Post
Hope that makes it clearer, like sliding a 1" wide sleeve over a shaft with .003" of clearance and see how much it can tilt vs the same sleeve over the same shaft with same .003" clearance but the sleeve is now 6" long. It would be like 5 degrees vs .1 degree (made up numbers but shows what I mean)Comment
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i see what your saying , i guess thats why they have a crush sleeve or spacer on the pinion of a differential , BTW , thanks billet , thats the best explanation i have seen yet,,,,,Comment
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