Re: [Chrysler300] Wheel bearing

[Ray Jones <hurst300@xxxx>]

Hi All;
Just a tid-bit. These type bearings are about the only thing in the
automotive world that is standardized. As far as I know, when a car or
whatever is designed, the bearing industry supplies the dimensions. The
vehicle is then designed around the available bearing. If for somew reason
it has to be something new, the bearing industry designs it. This is why you
can go to any auto parts store and with bearings in hand get a replacement,
usually off the shelf. Even if it's a 1921 Ford....

This also goes for any roller or ball type bearing, the shaft bearings in my
mower deck come from the auto parts store, off the shelf for $6 ea (I have
no idea what they fit) and not from Sears for $26 each. ANY bearing you
might need, check first with the auto store, and have the numbers of, or
each of the parts in hand.

Also, you may have trouble getting a bearing for a particular application,
but the inner and outer bearing races, and the bearing itself, if they are
all seperate, can be bought by number (on the part). This allows for
different size outer race holes and diffferent size shafts, all using the
same bearing. It used to be that they were a matched set, but the machining
is so good today, you can mix and match NEW bearings. And by useing
different halves, it is much easier to get a set off the shelf with fewer
parts in stock. In other words, don't order a part out of an old parts book
for your 1655 Whatsit, and have to wait when they may have the indivudual
pieces in stock.

See ya in MI, Ray Jones


> From: "Warren R Anderson" <wranderson@xxxx>
> Date: Mon, 28 Apr 2003 09:23:50 -0700
> To: "Chrysler 300 Club Listverver" <Chrysler300@xxxxxxxxxxxxxxx>, "John
> Hertog" <crossram@xxxx>
> Subject: [Chrysler300] Wheel bearing
> 
> 
> Late model, rear wheel drive vehicles, in general, the bearing design used
> most is a straight roller. The bearing rollers run directly on the axle
> shaft. Bearing and seal life can vary. Shaft life usually is 100K. This
> design is used on some 3/4 ton vans and Chevy Suburbans. Rollers have great
> radial load capacity but zero thrust load carrying capability. Cheap, simple
> design.
> 
> My '21 Ford has straight roller rear wheel bearings that run directly on the
> axle shafts - - -.
> 
> IMHO closing a bearing off in it's own clean, controlled environment is not
> a bad concept. If contamination gets in, of course, the bearing will be
> compromised. Bearing life based on fatigue always applies.
> 
> I had a Chrysler rear wheel Timken brand tapered bearing fail due to a
> factory defect gas pocket. This happened about 28 years ago.
> 
> Front wheel bearings (tapered roller) on medium and HD vehicles use oil
> seals and run in gear oil and not grease.
> 
> And, you will find that a conrad type ball bearing for a given shaft size
> will have a higher radial load rating than will a tapered roller bearing
> (like is used in vehicle wheel bearings) fitting the same shaft size. Some
> FWD cars use angular contact ball bearings on the front but I think
> separable inner race ball bearings of the type used in GM cars 40+ years ago
> died a long time ago in favor of the more reliable tapered roller bearing
> design.
> 
> Warren Anderson
> Sedona,AZ
> 
> 
> 
> 
> 
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