Re: Dana 30 front wheel bearings
 

Sounds like something the mechanist around here could easily fill
with weld and chuck it.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

KayakBill wrote:
>
> I'm not gonna modify the bearings, Jeff, simply make bushings to press
> into the front wheel hubs that are bored to press the bearing outer
> races into. Bushings made out of 4130 would actually make the hubs
> stronger, as the process of cold-drawing bar-stock produces steel that
> is inherently stronger than any part produced by the process of
> casting (like wheel hubs).
>
> By boring the bushing ID to size and tapping the bearing race into it
> before turning the bushing OD to size, the bearing race will keep the
> bushing from springing out-of-round before I get it pressed into the
> wheel hub. Bearing races are hardened to around 60 on the Rockwell
> scale, and they will NOT deform. (Hit one with a hammer lol... it'll
> shatter, but I promise it won't bend. Wear a face shield if you try
> this).
>
> I've been setting-up/programming CNC machining equipment to manufacture
> parts for the automotive, aircraft, defense industries and every
> industry you can think of for about 18 years. Latest project was
> getting a couple of Giddings and Lewis Horizontal Machining Centers
> (their HMC 170's) to machine Allison's new auto tranny cases for big
> rigs (tractor/trailors, cement mixers, etc). Allison seems quite happy
> with the cases they get from Walker Die Casting. And the HMC 170's are
> quite impressive. The tool magazines hold 100 tools (face mills, end
> mills, boring heads, drills, taps, reamers, etc.), they execute a tool
> change in less than 2 seconds, they have a 3,000 IPM rapid-traverse
> rate, they have 2 pallets that auto-change. Made a fixture on one that
> holds the tranny vertically, bell-housing down, do all the radial work
> on it. On the second pallet tranny mounts to the fixture via the (just
> machined) mounting pads locating on 2 dowell holes we just put in, do
> all the linear work on ths fixture (main-bearing bore, drive bearing
> bore, clutch ring grooves, seal bores, etc.). Allison has a tight
> tolerance from the centerline of the main bores to the pan mounting
> surface, so this is where I have the machine facing the pan mounting
> surface and drilling/tapping/reaming bunches of holes on the bottom.
>
> I mounted a 2-foot-long wire brush off a floor-cleaner in a boring-bar
> holder, machine swipes it over and inside the whole tranny-case last
> thing, does a good job of de-burring the whole thing. Allison folks
> were impressed lol.
>
> Been doin this a long time...

Re: Dana 30 front wheel bearings
 

Sounds like something the mechanist around here could easily fill
with weld and chuck it.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

KayakBill wrote:
>
> I'm not gonna modify the bearings, Jeff, simply make bushings to press
> into the front wheel hubs that are bored to press the bearing outer
> races into. Bushings made out of 4130 would actually make the hubs
> stronger, as the process of cold-drawing bar-stock produces steel that
> is inherently stronger than any part produced by the process of
> casting (like wheel hubs).
>
> By boring the bushing ID to size and tapping the bearing race into it
> before turning the bushing OD to size, the bearing race will keep the
> bushing from springing out-of-round before I get it pressed into the
> wheel hub. Bearing races are hardened to around 60 on the Rockwell
> scale, and they will NOT deform. (Hit one with a hammer lol... it'll
> shatter, but I promise it won't bend. Wear a face shield if you try
> this).
>
> I've been setting-up/programming CNC machining equipment to manufacture
> parts for the automotive, aircraft, defense industries and every
> industry you can think of for about 18 years. Latest project was
> getting a couple of Giddings and Lewis Horizontal Machining Centers
> (their HMC 170's) to machine Allison's new auto tranny cases for big
> rigs (tractor/trailors, cement mixers, etc). Allison seems quite happy
> with the cases they get from Walker Die Casting. And the HMC 170's are
> quite impressive. The tool magazines hold 100 tools (face mills, end
> mills, boring heads, drills, taps, reamers, etc.), they execute a tool
> change in less than 2 seconds, they have a 3,000 IPM rapid-traverse
> rate, they have 2 pallets that auto-change. Made a fixture on one that
> holds the tranny vertically, bell-housing down, do all the radial work
> on it. On the second pallet tranny mounts to the fixture via the (just
> machined) mounting pads locating on 2 dowell holes we just put in, do
> all the linear work on ths fixture (main-bearing bore, drive bearing
> bore, clutch ring grooves, seal bores, etc.). Allison has a tight
> tolerance from the centerline of the main bores to the pan mounting
> surface, so this is where I have the machine facing the pan mounting
> surface and drilling/tapping/reaming bunches of holes on the bottom.
>
> I mounted a 2-foot-long wire brush off a floor-cleaner in a boring-bar
> holder, machine swipes it over and inside the whole tranny-case last
> thing, does a good job of de-burring the whole thing. Allison folks
> were impressed lol.
>
> Been doin this a long time...

Re: Dana 30 front wheel bearings
 

Sounds like something the mechanist around here could easily fill
with weld and chuck it.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

KayakBill wrote:
>
> I'm not gonna modify the bearings, Jeff, simply make bushings to press
> into the front wheel hubs that are bored to press the bearing outer
> races into. Bushings made out of 4130 would actually make the hubs
> stronger, as the process of cold-drawing bar-stock produces steel that
> is inherently stronger than any part produced by the process of
> casting (like wheel hubs).
>
> By boring the bushing ID to size and tapping the bearing race into it
> before turning the bushing OD to size, the bearing race will keep the
> bushing from springing out-of-round before I get it pressed into the
> wheel hub. Bearing races are hardened to around 60 on the Rockwell
> scale, and they will NOT deform. (Hit one with a hammer lol... it'll
> shatter, but I promise it won't bend. Wear a face shield if you try
> this).
>
> I've been setting-up/programming CNC machining equipment to manufacture
> parts for the automotive, aircraft, defense industries and every
> industry you can think of for about 18 years. Latest project was
> getting a couple of Giddings and Lewis Horizontal Machining Centers
> (their HMC 170's) to machine Allison's new auto tranny cases for big
> rigs (tractor/trailors, cement mixers, etc). Allison seems quite happy
> with the cases they get from Walker Die Casting. And the HMC 170's are
> quite impressive. The tool magazines hold 100 tools (face mills, end
> mills, boring heads, drills, taps, reamers, etc.), they execute a tool
> change in less than 2 seconds, they have a 3,000 IPM rapid-traverse
> rate, they have 2 pallets that auto-change. Made a fixture on one that
> holds the tranny vertically, bell-housing down, do all the radial work
> on it. On the second pallet tranny mounts to the fixture via the (just
> machined) mounting pads locating on 2 dowell holes we just put in, do
> all the linear work on ths fixture (main-bearing bore, drive bearing
> bore, clutch ring grooves, seal bores, etc.). Allison has a tight
> tolerance from the centerline of the main bores to the pan mounting
> surface, so this is where I have the machine facing the pan mounting
> surface and drilling/tapping/reaming bunches of holes on the bottom.
>
> I mounted a 2-foot-long wire brush off a floor-cleaner in a boring-bar
> holder, machine swipes it over and inside the whole tranny-case last
> thing, does a good job of de-burring the whole thing. Allison folks
> were impressed lol.
>
> Been doin this a long time...

Re: Dana 30 front wheel bearings
 

Always give it a try as there are many family operate parts stores
still in business, probably because they maintain an adequate cross
references.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

KayakBill wrote:
>
> The numbers are barely legible, and I probably could if I could find a
> parts supplier that had a master listing for whatever brand bearings
> these are (only the SKU is stamped into the bearings, not the brand
> name). O'course, if/when I ever sold this thing, were the new owner
> ever to replace the front wheel bearings, they'd be going thru this
> whole thing all over again.
>
> i can understand why parts houses loose track of rarely used part
> numbers on a 33 year-old jeep. Modifying the wheel hubs to accept the
> bearings EVERYONE has listed is really not that big of a deal. I
> simply thought somebody might be able to point me to the right bearings
> and save me from sacrificing a lunch-hour working on a personal
> project...

Re: Dana 30 front wheel bearings
 

Always give it a try as there are many family operate parts stores
still in business, probably because they maintain an adequate cross
references.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

KayakBill wrote:
>
> The numbers are barely legible, and I probably could if I could find a
> parts supplier that had a master listing for whatever brand bearings
> these are (only the SKU is stamped into the bearings, not the brand
> name). O'course, if/when I ever sold this thing, were the new owner
> ever to replace the front wheel bearings, they'd be going thru this
> whole thing all over again.
>
> i can understand why parts houses loose track of rarely used part
> numbers on a 33 year-old jeep. Modifying the wheel hubs to accept the
> bearings EVERYONE has listed is really not that big of a deal. I
> simply thought somebody might be able to point me to the right bearings
> and save me from sacrificing a lunch-hour working on a personal
> project...

Re: Dana 30 front wheel bearings
 

Always give it a try as there are many family operate parts stores
still in business, probably because they maintain an adequate cross
references.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

KayakBill wrote:
>
> The numbers are barely legible, and I probably could if I could find a
> parts supplier that had a master listing for whatever brand bearings
> these are (only the SKU is stamped into the bearings, not the brand
> name). O'course, if/when I ever sold this thing, were the new owner
> ever to replace the front wheel bearings, they'd be going thru this
> whole thing all over again.
>
> i can understand why parts houses loose track of rarely used part
> numbers on a 33 year-old jeep. Modifying the wheel hubs to accept the
> bearings EVERYONE has listed is really not that big of a deal. I
> simply thought somebody might be able to point me to the right bearings
> and save me from sacrificing a lunch-hour working on a personal
> project...

Re: Dana 30 front wheel bearings
 

fill a bearing-bore with weld and re-bore it... yer bullshittin me.
right? Yer scaring me, Bill...
L.W.(Bill) ------ III wrote:
> Sounds like something the mechanist around here could easily fill
> with weld and chuck it.
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/

Re: Dana 30 front wheel bearings
 

fill a bearing-bore with weld and re-bore it... yer bullshittin me.
right? Yer scaring me, Bill...
L.W.(Bill) ------ III wrote:
> Sounds like something the mechanist around here could easily fill
> with weld and chuck it.
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/

Re: Dana 30 front wheel bearings
 

fill a bearing-bore with weld and re-bore it... yer bullshittin me.
right? Yer scaring me, Bill...
L.W.(Bill) ------ III wrote:
> Sounds like something the mechanist around here could easily fill
> with weld and chuck it.
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/

Re: Dana 30 front wheel bearings
 

People weld crankshaft journals and then grind them to make strokers, so why
not?

Seriously, I think you need to find a more competent parts counter person.
It sounds as if your hub has the right bearing in it, or at least one that
will work, and all you need is an identical replacement. The person you are
talking to now either doesn't have the right catalogs, or doesn't know how
to read them.

Earle

"KayakBill" <kayakbill@bellsouth.net> wrote in message
news:1152145568.993643.30480@p79g2000cwp.googlegro ups.com...
> fill a bearing-bore with weld and re-bore it... yer bullshittin me.
> right? Yer scaring me, Bill...
> L.W.(Bill) ------ III wrote:
> > Sounds like something the mechanist around here could easily fill
> > with weld and chuck it.
> > God Bless America, Bill O|||||||O
> > mailto:-------------------- http://www.----------.com/
>