Metal Lathe ? Update

Postby **dirt devil** » Sat Apr 07, 2007 8:03 am

I am looking at a lathe that a frined is willing to sell, However it needs a gear that will alow it to cut threads and advance on its own. It is a Rockwell 25-700. Any idea where I could find parts for it?

Thanks Dave

Postby **grumpy** » Sat Apr 07, 2007 8:34 am

Dave, Do you know "which" gear your missing? I have a South bend gear drive and it has about 15 different gears.One gear will cut 13 tpi , one for 20 tpi etc. You can (hopefully) get access here or on line for a parts breakdown. Maybe one of our resident GURU's here can head you in the right direction. You may only be missing a standard idler gear. Good luck. Dave

Postby **dirt devil** » Sat Apr 07, 2007 9:18 am

Grumpy

The guy that owns it said that it was a small gear that advances it. I have not had a chance to look inside it or see a parts diagram. I have tried searching on line and have come up empty. I know that there are a few members that use these older machines so I thought that I would ask here.

Dave

Postby **Don McCombs** » Sat Apr 07, 2007 9:31 am

Dave,

Give this outfit a call. It's a free call and worth a shot. Maybe they have documentation they could copy and send to you.

http://www.usedequip.com/q/showdlist/,,ST,,,008760,20101243

Postby **George Willer** » Sat Apr 07, 2007 9:39 am

Dave,

Here's a guy showing off his Rockwell 25-100 to give you some ideas.

http://www.wheatfarm.com/rockwell_lathe/index.html

It's very similar to my South Bend 13". It even uses the same L-00 chucks. If you're lucky the missing gear is a standard one in the primary train powering the quick change.

Mine was also a school lathe and badly mistreated. I made most of the parts needed to bring it back to life.

Gears on most lathes are standards and can be bought off the shelf from specialty houses like Boston Gear.

http://gwill.net/images/shop/03.jpg

Postby **grumpy** » Sat Apr 07, 2007 9:42 am

Dave, you will almost have to look at it to be sure. The only "gear" that drives it would be a small gear that meshes with other gears in the gearbox on the end of the leadscrew or the half nut that engages the carriage and crossfeed. Hopefully someone here has the book. Grump

Postby **George Willer** » Sat Apr 07, 2007 9:55 am

Dave,

The magic that happens when changing speeds for threading occurs inside the QC box. The more likely to be missing gear would be in the train on the left in the picture. They are pretty much just idlers and for reversing direction. I think it's the one on the end of the lead screw that gets changed to one with 127 teeth for metric threading. It may have been misplaced when making that swap. It isn't fatal!

Postby **dirt devil** » Sat Apr 07, 2007 10:17 am

GW

You are quick on the draw. I was going to get that pic, and say that it was supposed to be on the left side of the gear train. If that is true I wouldn't be so worried. He is asking $500 for it, is this a fair price?

Also a rough idea as to what the gear you think is missing would cost.

Thanks Dave

Postby **George Willer** » Sat Apr 07, 2007 10:50 am

500 is a pretty cheap lathe. Is there any tooling with it? The one on the site I sent is pretty nice and well equipped. Many school lathes were equipped with nice stuff like taper attachments and steady and follower rests as well as nice tool holders.

I don't have any idea about the price for a gear but it shouldn't break the bank.

Postby **dirt devil** » Sat Apr 07, 2007 11:52 am

GW

The one that I am looking at has the taper lock tool bit holder with one bit, and it has a holder at the end to put a drill chuck in which it has two of them with it (drill chucks). That is all that I saw with that machine, who knows what is inside of the cabinate.

Thanks Dave

LiL' Red · Postby **LiL' Red** » Sun Apr 08, 2007 11:48 am

Dirt Devil, Rockwell has a hotline number 866 514 7625 they may be able to help.
Many of these machines have propreitary gear pitches and standard change gears will not mesh properly. I recall this being a problem with South Bend, Cincinnati and Le Blonde.
We had a 14X48 Rockwell at work, real nice to operate. I would jump on this deal!

LiL' Red · Postby **LiL' Red** » Sun Apr 08, 2007 11:57 am

You might also try Delta Tools. Many years ago there was merger between Rockwell and Delta,not sure if metalworking tools were included but it's worth a shot.

Postby **dirt devil** » Sun Apr 08, 2007 3:22 pm

Thanks for the tip LiL' Red

I will try and see if they have any advice.

Dave

Postby **dirt devil** » Wed Apr 11, 2007 6:35 pm

Well I brought the lathe home today and tried it out. I think that with a little elboy grease she will run just fine. I have a ops/parts manual on the way. I see where there used to be a gear and now is not, I hope it is a simple one to find but that is what the parts book will be for.

There are two drill chucks 1/2 and 3/4, two 4 jaw independant chucks, one 3 jaw chuck, a bunch of HSS tool bits, left and right tool bit holders plus a cut off bit holder. and a few other things that I am not sure of.

Here are a couple of pics

Thanks for all the help.
Dave

Postby **grumpy** » Wed Apr 11, 2007 7:27 pm

Well we know it's not the gear on the leadscrew but shouldn't be hard to find. Good set up for the $$. good luck. grump

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Metal Lathe ? Update

Metal Lathe ? Update

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