facebook  YouTube


CNC Turning and Threading of Pre-Hardened 4140 Steel, for a Ball Joint Assembly for the Automotive Wheel Alignment Industry


Here at Cosmos Enterprises, Inc., we manufacture this complete offset ball joint assembly for use in the aftermarket automotive wheel alignment industry. We machine the offset ball joint from pre-hardened 4140 material, and we use 1018 steel for the outer case. We machine the ball cup from UHMW. We use several processes, including CNC turning, rotary broaching, threading, drilling, tapping, sawing, and swaging. We maintain a tolerance range of +/- .0005 on the actual ball joint. After manufacturing is complete, a clear trivalent zinc finish is applied. After final assembly, the finished product measures 2 ¼" X 3" long, and weighs 1 ½ pounds. Each of these assemblies is packaged in a heat sealed plastic bag with instructions, boxed in our customer's supplied boxes, and shipped in a master carton.  In all, this product requires approximately 8 weeks to complete.


ball_joint_assembly        zinc-plated-ball-joint-assembly-port




Capabilities Applied/Processes   Turning, Rotary Broaching, Threading, Drilling and Tapping, Swaging
Tightest Tolerance   +/- .0005
Material Thickness   2 ¼" diameters
Product Length   3"
Product Weight   1 ½ lbs
Surface Roughness   32 RA
Base Material   Pre-hardened 4140, 1018, UHMW, Rubber
Color   Clear
Material Finish   Zinc
Packaging   Bag with instructions and boxed
Industry for Use   Automotive under chassis
Volume   250 - 2500
Drawing Type Accepted   DXF