350B inner sprocket shaft and gear

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18vtx00
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350B inner sprocket shaft and gear

Post by 18vtx00 » Sat Oct 01, 2011 2:29 pm

After removing the tracks I found that the sprocket shaft moves in any direction w/ force. I took the sprocket assemble apart and looks like the bearing is bad and now the axle is centering itself on the coupling gear and shaft. Does this make sense? Looks like there isn't any support for the shaft from the inner side. Does anyone after market make the bearing, shaft, coupling gear and housing?
350BW, 6 way Dozer
'86 Ford 555 backhoe, side-shift 4:1 ext hoe, 4X4
'03 F350 CC, 6.0L, 8', 4X4, Lariat
'03 Honda VTX1800
'01 Honda XR650L
'01 Subaru Outback Wagon "was Grandpa's"
Vintage sleds and a shop full of tools and toys!

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gerald
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Post by gerald » Sun Oct 02, 2011 7:34 pm

When I took my 350 down for clutches an brakes . I found there was more movement in the bull gear then what I liked , eveything was ttght an bearing where good. It hasent came through the casting yet .
1970 350 crawer/loader 93a back hoe

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18vtx00
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Post by 18vtx00 » Mon Oct 03, 2011 5:59 am

Since mine is a wide track it's different I think. Seems to me the bearings get worn and then they over tightened the tracks and now it uses the gears to center the sprocket shaft..
350BW, 6 way Dozer
'86 Ford 555 backhoe, side-shift 4:1 ext hoe, 4X4
'03 F350 CC, 6.0L, 8', 4X4, Lariat
'03 Honda VTX1800
'01 Honda XR650L
'01 Subaru Outback Wagon "was Grandpa's"
Vintage sleds and a shop full of tools and toys!

JWB Contracting
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Wide Pad Parts

Post by JWB Contracting » Mon Oct 03, 2011 12:09 pm

I believe that you are looking for the external outer bearing assembly, axle and drive coupling. This essentially bolts onto the final drive flange.
Jason Benesch

John Deere 420, 430, 440 & 350C With 3 Point Hitch
John Deere 400G With Winch
John Deere 2010 Crawler Dozer
John Deere 420, 430, 435 & 440 Wheel Tractors

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18vtx00
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Re: Wide Pad Parts

Post by 18vtx00 » Mon Oct 03, 2011 12:16 pm

JWB Contracting wrote:I believe that you are looking for the external outer bearing assembly, axle and drive coupling. This essentially bolts onto the final drive flange.
yes, the terminology is from deere's parts department. basically makes the sprockets sit further out from the final.
350BW, 6 way Dozer
'86 Ford 555 backhoe, side-shift 4:1 ext hoe, 4X4
'03 F350 CC, 6.0L, 8', 4X4, Lariat
'03 Honda VTX1800
'01 Honda XR650L
'01 Subaru Outback Wagon "was Grandpa's"
Vintage sleds and a shop full of tools and toys!

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Lavoy
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Post by Lavoy » Tue Oct 04, 2011 8:01 am

Real hard to come by used, new used to be available, but spendy.
Lavoy

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18vtx00
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Post by 18vtx00 » Tue Oct 04, 2011 9:16 am

I found two sets and yes the used ones cost as much as the machine is worth..new is a bit more. i would make her narrow except my cross shafts are welded. Having a friend of mine that's a machinist stop by my shop tonight to figure out some options.
350BW, 6 way Dozer
'86 Ford 555 backhoe, side-shift 4:1 ext hoe, 4X4
'03 F350 CC, 6.0L, 8', 4X4, Lariat
'03 Honda VTX1800
'01 Honda XR650L
'01 Subaru Outback Wagon "was Grandpa's"
Vintage sleds and a shop full of tools and toys!

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