I am familiar with SKF hubs When I worked at my last job I headed up the installation of a large machining, heat treating and assembly system at SKF plant in Aiken South Carolina. The system started with a large tractor trailer type hub blank our Vertical turning centers turned the Od. and Id which included the outer races from there they went thru an Induction Hardening machine that hardened the races, after hardening (race area only) a multy spindle vertical drill and reaming machine did the 12 stud holes then the hub went into a Id grinding machine that precision ground the outer races and matched them to the center of the hub that had the inner races machined ,Hardened and Ground in a similar fashion. The Hub now went onto an Assembly machine that chose the correct size tapered rollers based on the measurements made after grinding. An already long story short when the Hub came off the end of the machine it was ready to go on a truck. These hubs were both Steering and Trailer Hubs. The entire operation was automated from start to finish a man loaded the Hub on the first VTC. and Gantries, Grippers and conveyors moved them along to the end. Right next to our system was an Italian system very similar that did the same thing with Car and small truck size Hubs. There was still some human intervention, monitoring and filling Hoppers and feeders and such. When I replaced the Hubs on my 2000 Ford Expedition I asked for SKF.
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Today's Featured Article - 12-Volt Conversions for 4-Cylinder Ford 2000 & 4000 Tractors - by Tommy Duvall. After two summers of having to park my old 1964 model 4000 gas 4 cyl. on a hill just in case the 6 volt system, for whatever reason, would not crank her, I decided to try the 12 volt conversion. After some research of convert or not, I decided to go ahead, the main reason being that this tractor was a working tractor, not a show tractor (yet). I did keep everything I replaced for the day I do want to restore her to showroom condition.
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