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rick130
4th October 2008, 03:42 PM
Can a numpty (sorry Numpty :D) that hasn't driven a mill in fifteen years (and then only under supervision from an engineer) adequately (accurately) machine the intermediate shaft bore ?
.....or should I just be smart and farm it out to a machine shop ?

How 'good' a surface finish do I need for the ID of the bush ? (and what section width and should it be a top hat section ?)

Do I really want to do any of this ? (NO)

Yes, the bloody intermediate shaft is leaking again :(

<edit> there is a mill and lathe 250m away, and the nearest decent machine shop is at least 60km one way....

ladas
4th October 2008, 04:35 PM
Can a numpty (sorry Numpty :D) that hasn't driven a mill in fifteen years (and then only under supervision from an engineer) adequately (accurately) machine the intermediate shaft bore ?
.....or should I just be smart and farm it out to a machine shop ?

How 'good' a surface finish do I need for the ID of the bush ? (and what section width and should it be a top hat section ?)

Do I really want to do any of this ? (NO)

Yes, the bloody intermediate shaft is leaking again :(

<edit> there is a mill and lathe 250m away, and the nearest decent machine shop is at least 60km one way....

Rick, surely if you approach it methodically it's very do-able, and if you take your time and manage the machine speed okay you would be able to get a near mirror finish.

Just make every pass a very small one and measure in between each 'cut'

Just my thoughts

Ladas

rick130
4th October 2008, 05:00 PM
Rick, surely if you approach it methodically it's very do-able, and if you take your time and manage the machine speed okay you would be able to get a near mirror finish.

Just make every pass a very small one and measure in between each 'cut'

Just my thoughts

Ladas

Thanks Ladas.
I tend to use a lathe only about once or twice a year, and consequently I've always been very conservative with my cuts and feed speeds ;)

It's the mill use I'm really rusty on.

justinc
4th October 2008, 10:44 PM
Thanks Ladas.
I tend to use a lathe only about once or twice a year, and consequently I've always been very conservative with my cuts and feed speeds ;)

It's the mill use I'm really rusty on.

Practice on a piece of scrap ally plate to play with boring/ sizing / finshing etc first.

You'll be fine Rick, it's just like riding a bike...:)

Last one we had done was bored, top hat insert keyed into the case. Work of art it was!

JC

Graeme
5th October 2008, 07:37 AM
Would Loctite Bearing Retainer on the shaft be a viable alternative? I've successfully used it on bearings that were loose in their housings, although the bearing ODs were substantially larger than this shaft and most likely weren't subjected to nearly as much torque.

MacMan
6th October 2008, 08:22 AM
I was going to use the Loctite bearing grip on mine instead of getting anything re-cut and sleeved. I'd be interested if anyone has had any problems doing so. Will be using a new replacement shaft BTW.