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Old 11-28-2014, 08:10 AM   #41
PSFORD99
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Quote:
quote:Originally posted by Phil P

Hi

Here is something for you all to think about.

I have changed a total of 9 sets of wheel bearings in the last 2 months.

I have replaced 3 complete sets of bearings inner and outer. 1 set on a very heavy trailer the inner race diameter was 4 inches and 2 sets inner and outer on the front wheels of an f250 4X4.

The trailer the wheel and hub had departed the trailer, on the f250 the only reason the wheels and hubs had not departed the truck was because the disk brake calipers prevented this.

Theses bearings were badly damaged the cages were destroyed and rollers turned sideway etc.

The amazing thing I found was all three were full of grease there was not any sign of heat like you get when a bearing is run dry. I was unable to determine why they failed.

These three are the only ones that had grease in them the rest were dry and it was obvious why they failed.


Phil P
Are you talking four wheel drive or two wheel drive on the F250 ? My ford super duty had a sealed bearing setup, they are not a greaseable item. Had one go out, and you would know long before anything was going to come apart . No mistaking when one goes.
 
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Old 11-28-2014, 08:26 AM   #42
Phil P
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Quote:
quote:Originally posted by PSFORD99


Are you talking four wheel drive or two wheel drive on the F250 ? My ford super duty had a sealed bearing setup, they are not a greaseable item. Had one go out, and you would know long before anything was going to come apart . No mistaking when one goes.
Hi

It’s a 4X4 with the Spicer 50 front axle. I don’t drive these things they just drop them in the shop and call me. This is a large ranch 11,000 acres; it’s a 5 mile drive on their driveway from the hard road to the shop. I only do their heavy maintenance part time. I kind of got roped in to that when I was ask by a mechanic that had left them in a bind to do the rear end rebuild on one of their F350’s.

The point to the post was the failure of bearings that were full of grease.

Phil P
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Old 11-30-2014, 02:41 AM   #43
dasmoeturhead
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How often should the bearings be greased in this manner?
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Old 11-30-2014, 06:03 AM   #44
Phil P
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quote:Originally posted by dasmoeturhead

How often should the bearings be greased in this manner?
Hi

I do mine twice a year using the instructions from Dexter on how to do it with their lube system.

Phil P
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Old 11-30-2014, 03:13 PM   #45
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Thanks.
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