Bridgeport Mill?

admin

I know this probably isnt the best forum for this, but i figured i would post it and pick some brains here, i know several here know about machinery.. i will probably post over on practical machinist also..Anyways, heres my question.. i ran the serial number on the bridgeport i just bought, got it home so i looked at the serial number...  the serial number is BR149294 there is a 12 stamped over the BR..  the 12 over the BR tells me the mill has 12inches of travel in y axis.  so this leads me to believe now that i have one of the larger Jhead bridgeports.. also found it to be a late 1972 model..  so i cant call it old cause its younger than me by a 3 years..   Can anyone give me anymore info perhaps..  maybe what the x axis travel would be? i still have it tied down and tarped on the trailer so i cant measure the x axis until i unload it.  I'm thinking they have like 36inches of travel in x axis, but cant really remember off the top of my head. thanks bruceLast edited by brucer; 02-15-2011 at 03:24 PM.tackleexperts.comwww.necessityjigs.comhttps://www.facebook.com/groups/mach...dingequipment/
Reply:I think the standard travel on them was 36" in the x direction with a 54" table.  For it to have longer travel, it would have to have a longer table (in that direction), so that's a pretty easy way to determine it.  I know that doesn't help you with it under the tarp, but that's all I have for the moment.Even with the long tables, I try to avoid having a big unsupported length (read: weight hanging cantilever off the knee).  It might not be entirely necessary, but I don't like to take the chance of something going wrong.
Reply:Here are the specs. from the Bridgeport site for the Series I machines: Key Specifications   Table travel (X-Axis):36" (914 mm)Saddle Travel (Y-Axis):12" (305 mm)Quill Travel:5" (127 mm)Knee Travel (Z-Axis):16" (406 mm)Ram Travel:12" (305 mm)Throat Distance (Min.):18.75" (476 mm)Throat Distance (Max.):6.75" (171 mm)WORKTABLEStandard:49 x 9" (1245 x 299 mm)T Slot center distance:3 @ 2.5" (64 mm) centersT-Slot Size:0.625" (16 mm)Height Above Floor (Max.):47.25" (1200 mm)Weight of Workpiece (Max.):750 lb (340 kg)Standard Features    * One-Shot lubrication system    * Chrome-Plated Ways and Gibs    * Color Machine Tool GrayOptional Features    * 2-Axis Digital Readout    * Power Drawbar for R-8 or #30 Quick-Change Spindle    * Flood Coolant System    * Splashbacks and Chip Pan    * Worklight    *Electrics—NFPA/NEMA-12 Standards, UL listedFor a more detailed brochure about the Series I, go Here.
Reply:Brucer you can down load the manual on line.  Handy thing to have.
Reply:Originally Posted by rbenginesBrucer you can down load the manual on line.  Handy thing to have.
Reply:Very good British web site called www.lathes.co.uk has loads of info on many many mills, lathes, etc etc