|
Posted by BillM on June 14, 2008, 8:44 pm
Please log in for more thread options
Wallowed out tie rod end hole on a steering
knuckle on a 4WD John Deere tractor. $1800
part. Got a new tie rod, trying to figure out
the taper so I can get a reamer. It's a ZF
front
axle, so it's probably metric. Does anybody
KNOW what the taper is? Looks really close
to 1 in 12, but is it?
Source for a left hand spiral right hand reamer?
Thanks,
Bill
|
|
Posted by Pete C. on June 14, 2008, 9:00 pm
Please log in for more thread options
BillM wrote:
>
> Wallowed out tie rod end hole on a steering
> knuckle on a 4WD John Deere tractor. $1800
> part. Got a new tie rod, trying to figure out
> the taper so I can get a reamer. It's a ZF
> front
> axle, so it's probably metric. Does anybody
> KNOW what the taper is? Looks really close
> to 1 in 12, but is it?
>
> Source for a left hand spiral right hand reamer?
>
> Thanks,
>
> Bill
Had the same problem on an old Deere backhoe, though it was a $165 part.
I put the knuckle on the mill and bored out the worn out section with a
1" end mill. Put some 1.25" bar in the lathe and turned to match the 1".
Drilled and bored the matching taper into the bar (don't recall what it
was). Cut the insert to length, pressed it into the knuckle, welded both
ends, ground flush and it worked good as new.
|
|
Posted by BillM on June 14, 2008, 10:13 pm
Please log in for more thread options
>
> BillM wrote:
>>
>> Wallowed out tie rod end hole on a steering
>> knuckle on a 4WD John Deere tractor. $1800
>> part. Got a new tie rod, trying to figure
>> out
>> the taper so I can get a reamer. It's a ZF
>> front
>> axle, so it's probably metric. Does anybody
>> KNOW what the taper is? Looks really close
>> to 1 in 12, but is it?
>>
>> Source for a left hand spiral right hand
>> reamer?
>>
>> Thanks,
>>
>> Bill
>
> Had the same problem on an old Deere backhoe,
> though it was a $165 part.
> I put the knuckle on the mill and bored out
> the worn out section with a
> 1" end mill. Put some 1.25" bar in the lathe
> and turned to match the 1".
> Drilled and bored the matching taper into the
> bar (don't recall what it
> was). Cut the insert to length, pressed it
> into the knuckle, welded both
> ends, ground flush and it worked good as new.
Thanks Pete---If it was a one time thing that's
what I would do too. The outfit I work for
has a half dozen of these mechanical front drive
tractors. At 2 per tractor, and as big a
pain in the ass as it is to get the knuckle off
(drop the wheel/tire and then a planetary
gearbox), I figure that a reamer will pay for
itself quickly. Weld it up, grind/drill it
close,
ream to finish---all on the tractor. Sure wish
you could recall what that taper was!
I've measured it three times, and it comes out
at just barely over 1" in 12". That's on the
male tie rod end. Do they do a crush lock on
those? Is the hole a true 1:12? The
Metric tapers I find reference to on tie rod
ends are 1:10, and it's not that.
Bill
|
|
Posted by Pete C. on June 14, 2008, 10:58 pm
Please log in for more thread options
BillM wrote:
>
> >
> > BillM wrote:
> >>
> >> Wallowed out tie rod end hole on a steering
> >> knuckle on a 4WD John Deere tractor. $1800
> >> part. Got a new tie rod, trying to figure
> >> out
> >> the taper so I can get a reamer. It's a ZF
> >> front
> >> axle, so it's probably metric. Does anybody
> >> KNOW what the taper is? Looks really close
> >> to 1 in 12, but is it?
> >>
> >> Source for a left hand spiral right hand
> >> reamer?
> >>
> >> Thanks,
> >>
> >> Bill
> >
> > Had the same problem on an old Deere backhoe,
> > though it was a $165 part.
> > I put the knuckle on the mill and bored out
> > the worn out section with a
> > 1" end mill. Put some 1.25" bar in the lathe
> > and turned to match the 1".
> > Drilled and bored the matching taper into the
> > bar (don't recall what it
> > was). Cut the insert to length, pressed it
> > into the knuckle, welded both
> > ends, ground flush and it worked good as new.
>
> Thanks Pete---If it was a one time thing that's
> what I would do too. The outfit I work for
> has a half dozen of these mechanical front drive
> tractors. At 2 per tractor, and as big a
> pain in the ass as it is to get the knuckle off
> (drop the wheel/tire and then a planetary
> gearbox), I figure that a reamer will pay for
> itself quickly. Weld it up, grind/drill it
> close,
> ream to finish---all on the tractor.
Sounds like a fun job.
> Sure wish
> you could recall what that taper was!
Unlikely it was the same on an old 500C backhoe.
> I've measured it three times, and it comes out
> at just barely over 1" in 12". That's on the
> male tie rod end. Do they do a crush lock on
> those? Is the hole a true 1:12? The
> Metric tapers I find reference to on tie rod
> ends are 1:10, and it's not that.
I don't know what ou have for a shop, perhaps take a sample to a local
machine shop that may be able to measure more precisely?
|
|
Posted by BillM on June 14, 2008, 11:38 pm
Please log in for more thread options
> I don't know what ou have for a shop, perhaps
> take a sample to a local
> machine shop that may be able to measure more
> precisely?
Measured the large and small end with a 0-1
mike. Length with a vernier caliper.
Comes out at 1.0603" per foot. That's an
average of 3 readings, but none of then varied
by more than a few thousandths.
If I set the new tie rod end up on the mill
table, dial it concentric (vertical), put a dial
indicator
in the quill setting horizontal on the
centerline I should be able to get a very
accurate read on
the taper by computing the dial indicator
against the quill DRO.
I guess I'm just trying to be a little lazy,
hoping that somewhere in the near infinite
knowledge of the group there was someone that
had "been there, done that", and I would have
the answer--
complete with the supplier and part number for
the reamer. Oh well, guess I'll have to do my
own homework. :-)
Bill
|
| Similar Threads | Posted | | Making taper attachment for lathe - what range of taper? | August 28, 2006, 8:33 am |
| shank adapter, extension rod, button bit, thread bit,taper bit, taper rod, drill rod, drill bit, corss bit, chisel bit, DTH hammer drilling ,rock drill, drill tube, casing shoe, drilling tool, core bit, core barrel, ODEX, TUBEX, quarrying,mining equipment | September 8, 2006, 2:22 am |
| How do I set up to machine a MT2 taper? | November 24, 2006, 7:57 am |
| TAPER ATTACHMENT | February 10, 2007, 4:50 am |
| NST40 Taper? | February 27, 2007, 1:31 pm |
| Taper tolerances | August 6, 2007, 3:03 pm |
| Re: Taper tolerances | August 7, 2007, 2:38 pm |
| Re: Boring a taper | March 12, 2006, 8:33 am |
| Re: Boring a taper | March 13, 2006, 2:21 pm |
| 10ee taper vernier | December 14, 2006, 1:07 pm |
|
|
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap
> Wallowed out tie rod end hole on a steering
> knuckle on a 4WD John Deere tractor. $1800
> part. Got a new tie rod, trying to figure out
> the taper so I can get a reamer. It's a ZF
> front
> axle, so it's probably metric. Does anybody
> KNOW what the taper is? Looks really close
> to 1 in 12, but is it?
>
> Source for a left hand spiral right hand reamer?
>
> Thanks,
>
> Bill