Jon
Senior Member
Just a thought... whenever I have to press two parts together I always check the with precisely. If the part is supposed to be a press fit it only takes 1-2 thousandths for it to work depending on the diameters involved. If one of the parts is off by just 2 thou it doesn't matter what you do or how you do it it aint gonna fit. I saw too many times at work where a coupling with a too small ID was burnt cherry red with a rose bud and then beat all to thunder with a sledge hammer to go on a shaft. If the dia. are correct a couple hundred degrees difference in temp and they slide together real nice and you can calculate the temp needed by measuring and determining the interference.