I want to weld a cast iron pillow block with the barring still in it. The reason i want to weld it with the barring still in it is: It has a 850 pound sprocket on the end. It is on a gravel crusher and we don't want to take all the sprockets etc. off. It maybe runs 50 rpm. not a lot of stress on it. what rod should i use and how should i cool it slow? could i apply heat to the steel I beam it is mounted on and slowly cut back on the heat? it would be very hard to wrap this to cool it slow.
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