View Full Version : My new (to me) Bridgeport mill
08-09-2006, 10:15 PM
I've been looking around for a mill for quite some time, and had just about made the decision to purchase and import mill/drill when I found this one at a local manufacturing facility. It has a DRO and power crossfeed unit, but needs some tlc to be usable.
I found this..
looked up and found..
What is the "X" piece called, and where can I locate a replacement.
Thanks in advance, and I'll be pestering you all with additional questions as I get this cleaned up and in my shop.
08-09-2006, 10:25 PM
Congratulations on your "new" Bridgeport. I know you'll have fun both fixing it up and using it. Here's a link to Mataco, they seem to be pretty fair to deal with http://www.matacoinc.net/html/vertical_turret_milling_gromax.html.
You may also want to do a search for "High Quality Tools Inc" I think they actually manufacture many replacement parts for these machines.
By the way, thats a fine looking 6' fleetside Chevy bed you have there also. I hope that the truck it goes with looks as nice!
08-10-2006, 01:08 AM
It's called a "spider" and there is a guy on the Bridgeport Yahoo group name John Fahnestock (I'll PM his email) who sells Bpt parts for very fair prices in my experience...
08-10-2006, 01:30 AM
08-10-2006, 06:53 AM
Lots of tooling and parts available.....the Chinese have been selling knock of copies for years.They call them First Mills.Good luck.... a good cleaning and a bit of elbow grease and you'll have a very dependable machine.
08-10-2006, 09:35 AM
I get any replacement Bridgeport parts from MSC. MSC carries some "in stock" parts for Bridgeport, though the spider is not one of them. They can get it for you though. Given you state some TLC is needed, get a manual. It will be very handy to have. Not being a smart a**, your machine is a series I, if you did not already know. MSC stocks the Series I manual. Order item #53318259. WARNING: Lists at $77.94. I bought mine from Bridgeport directly (when they were still in business as Bridgeport) for about $30.00. You may be able to find a manual for less elsewhere.
Not that MSC is any better than anyone else, just offering another resource.
Contact MSC machinery support division at 1-800-331-1110.
FWIW, If this helps you any:
From the Bridgeport installation, operation and maintenance manual, Spider, P/N 12060144.
From the Bridgeport installation, operation and maintenance manual, Manual, Series I P/N 11040001.
Good luck and enjoy your new toy!
08-10-2006, 10:17 AM
The manuals can be found on-line. There are several yahoo groups created my mister Rouche called bridgeport_mill_manuals1 through bridgeport_mill_manuals6 that have the manuals as PDF and JPG in their "files" section. There are also "cleaned up" manuals on the web somewhere that look and print about as clean as originals. Don't remember where I found mine.
Aw heck, can't sleep anyway, I tracked it down for you... :D
Bpt Manual M105H (http://www.bbssystem.com/manuals/M105H_Series1.pdf)
08-10-2006, 11:19 AM
You could braze that one back together. For that matter, the turret will likely not pivot with only three legs holding it. The spider is a clamp to prevent the turret from turning.
Another alternative to new would be to buy used. I purchased several parts from a guy who often lists on Ebay as doctorev. I have also purchased some other used parts direct and he is a good guy to deal with. He used to work for Bridgeport and bought a lot of stuff when they shut down. He lives there (Bridgeport, CT). I will try to see if I can find my contact info and mail it to you.
08-10-2006, 01:27 PM
All, thanks for the links and information.
ERBenoit, I was 95% that this is a series I, thanks for the confirmation. This is a 1962 vintage ( from the serial number cross ref tabll )and I think it's a "J Head" ?
It sure looks like I can remove the 4 bolts from the top side and remove, then replace this spider through the side access door in the housing. It also looks like the entire head will tip forward if I don't support the front of it before removing the bolts.. it this correct?
08-10-2006, 02:20 PM
ERBenoit, I was 95% that this is a series I, thanks for the confirmation. This is a 1962 vintage ( from the serial number cross ref tabll )and I think it's a "J Head" ?[QUOTE]
My at home unit is circa 1964. Yes yours is a J head, the 2J is the viriable speed version.
[QUOTE] It sure looks like I can remove the 4 bolts from the top side and remove, then replace this spider through the side access door in the housing. It also looks like the entire head will tip forward if I don't support the front of it before removing the bolts.. it this correct? [QUOTE]
I do not know for sure, I've never had to do of the like. DEFINATELY support the ram if it appears that your manner of reasoning the repair will work. Not knowing what you have availiable,the "recommended" manner of lifting the machine is with two slings under the ram. Doing the same to support, yet not lift the ram while you make the repairs should suffice as support. For safety sake, (as well as your investment) might I suggest the use of a lifting eye (no reguar eye bolt) in the top of the ram secured to a different hoist or anchoring point to prevent the ram taking a spill, should however you support the ram slip,give or be knocked out of place.
08-10-2006, 02:34 PM
I had my ram and turret on the mill without the spider clamped in place and there was no chance it was going to tip, but do not know for sure how it would perform with the head on it. I tend not to think it is a big issue as you have to loosen all 4 turret bolts at least some to pivot the turret...and in my experience, it does not tip forward when you do.
Still, I would just put some blocking under the quill and run the table up to just touch the quill and hold some of the weight of the head to be safe.
This will let you get the existing one out and see if repair or replacement is the correct option for you.
My guess is that someone just got carried away tightening that particular turret bolt and broke the spider.
good luck with it all
08-10-2006, 02:48 PM
I got a Bridgeport J Head, 1961, Serial No. 54534, with a 9X42 table and after i cleaned it, got power to it and power cross feed on it, it is working real good. I have allready made some tooling that i need in the shop with it.
Machinery parts depot (http://www.machinerypartsdepot.com/site/1478157/product/1243) has the spider for $58. For what it's worth, all new BP parts are made by Hardinge.
08-10-2006, 05:13 PM
First, I would not support it with the eye as that will give you a fulcrum for the weight of the head to lever across. I would run the ram full back, then put a block of wood under the spindle and raise the knee to just snug up under the spindle. Or if you’re really safety conscious, rotate the head so that the motor is on bottom and put the block of wood under the motor. That will lower the CoG of the upper assembly (and is also the recommended way to transport) enough that it should be difficult to tip. You could also use the eye as a "safety backup" but not put any tension on it so that it does not try to lift the turret out of the column.
Disclaimer: I've never done this, just thinking it through...