Skip -- Check out Torrington drawn cup needle bearings. There are a lot of
issues to consider there, including brinelling; but first go look at their
engineering data and then let's talk. You can harden and grind kingpins to
an exact diametral fit (like a few tenths); but picking the right alloy and
hardness requires a pretty close look at the loadings. You don't want the
kingpins so hard that they are subject to stress concentrations and fatigue.
I suspect that 8620 with a heavy case hardening may be the answer. But
don't take my answer "to the bank" quite yet.
Ed Weldon
----- Original Message -----
From: "John Burk" <joyseydevil@comcast.net>
To: "LandSpeed List" <Land-speed@autox.team.net>
Sent: Friday, February 26, 2010 7:15 PM
Subject: Re: [Land-speed] King Pin Bearings
> Skip
> You could ream the spindle bores for the next size rollers above the
> bushing wall thickness . Brinelling could be a problem and you'd need a
> way to retain the lower rollers . Is your scrub radius small . If not ,
> correcting it would reduce the friction of standard bushings .
> John
>> List,
>> I have been looking for a better bearing system for the king pins on the
>> liner. I want to use tapered rollers instead of bushings but I can't find
>> what I want. I want to do this to firm up the inline front end and make
>> alignment more accurate.
>>
>> Is there a kit to replace bushings with tapered rollers? The front end is
>> early Chevy pickup.
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