then on the z axis ballscrew mount i added some curved surfaces to match the shape of the ball nut. the ballscrew mounts replace the leadscrew mounts on the grizzly g0704 milling machine. they are designed to slip over the edge of the ballscrew nut and bolt onto the flange with 1/4-20 screws.
every bridgeport mill rebuild has the option to upgrade to a precision ball screw kit, but only 1 in 6 will purchase the upgrade, according to bridgeport machine rebuilders. the initial cost will typically scare off a purchasing agent, maintenance manager, or machine shop supervisor. but if those ball screws will last longer and be much more accurate over the life of 'multiple' acme screws
why put the effort into a machine that isn't going to be reasonably accurate? i seriously considered a conversion a few years ago but there are so many things lacking on a manual machine for use as cnc servo motors and mounts, ball screws, powered lube, beefier ways that your manual mill will probably have more value if left alone.
amazon.com: bridgeport milling machine - new. bridgeport mill part, j head milling machine collet alignment and set screw m1137 m1424. $18.99 $ 18. 99. bridgeport mill part, j head milling machine reverse trip ball lever m1033-03. 5.0 out of 5 stars 1. $29.99 $ 29. 99.
rockford ball screw manufactures preloaded ball screw kits for bridgeport standard series 1 mills and knee mill clones. bridgeport retrofit kits offer many convenient features: high-capacity, long-life: each ball nut assembly of the rockford preloaded unit has one circuit of 3 1/2 turns of ball bearings.
the bridgeport knee cnc retrofit kit mechanical components needed to automate the knee of a manual bridgeport, jet, enco or most any similar type milling machine for motorized control. all components are precision engineered. kit includes a size nema 42 motor mounting plate, motor pulleys, lead screw pulley, motor cover, drive belt, and all required bolts.
the other factor that comes into play in favor of keeping the ball screws is a lyman mk-7 power feed was included with the mill. it could also be used with acme screws but it fits on the y-axis ball screw without an extension.
42' rolled thread ball screw kit for machines with bridgeport power feed : $1764.00: brp1248: 48' rolled thread ball screw kit for machines without bridgeport power feed: $1764.00: brp1248pf: your source for bridgeport parts, mill accessories, and servo power feed parts and service.
get the best deals on bridgeport metalworking milling machines when you shop the largest online selection at ebay.com. free shipping on many items bridgeport milling machine x table screw set 9 x 42' $699.00. brand: bridgeport. $68.00 shipping. ball crank handle 5/8' bore milling machine bridgeport m1167 x and y axis. $33.99
i'm about to give up on fixing the ball screws on my bridgeport and now thinking of just getting a new ball screw retrofit kit or new acme screw setup. both will end up costing about the same based on prices at h and w machine. i realize experienced machinist are split on which is better but for a
bridgeport ball screw repair. superior ball screw will recondition your worn or damaged bridgeport ball screw assembly to look and perform as well as new, often for less than half the price of a new ball screw.
a friend is the milling foreman at a large manufacturing co and, at one time, they were replacing some older bridgeports -in which case they always scrap old equipment. i stripped one for the ball screws for mine. i asked the same questions to him and he stated they have always had ball screws on the manual bridgeports with no issues. i can say i have not had a problem with mine after
we sell rebuilt bridgeport mills for approximately 50-60% of a new bridgeport mill we also offer an opportunity to trade-in your well used bridgeport mill with a purchase of a rebuilt bridgeport mill. our rebuilt machines are guaranteed for a period of 1 year, under normal use and proper maintenance.
a complete pre-engineered package to automate your full-size bridgeport, enco, or similar size knee mill. just couple the motor shafts to your machine's drive screws, plug in the cables, turn on the power, and install the software.
an instructional video on how to install a ballscrew set onto a bridgeport mill. for further inquires please call 1-800-285-5271 or email us at support hwmachinerepair.com.
find milling machine parts and hardware at msc industrial supply, serving the metalworking, safety, and mro industries for over 75 years ball screw set 1 belt guard assembly 1 brake bearing cap 1 brake block assembly 1 bridgeport type milling machines w/10' table width 1 bridgeport type milling machines w/9' table width 1