GGuillot
Well-Known Member
I'm not sure if this has been done on here, but I'd like to share how I did it. I needed to pull the rotary shaft on my 787 I'm rebuilding, the bearings had a grit feel to them, either from rust or me not blocking it off when I media blasted. The going rate for the puller tool seems to be about $30 dollars + shipping. I made one for about $7 after a quick trip to Home Depot.
You'll need a 1 1/4" pipe cap, I could only find the galvanized one for a couple dollars more, $4.50 vs. $2.50. You'll also need a 6mm x 1.00 bolt about 3" long and the matching nut. I center punched and drilled a hole in the middle and had to grind down the threads on the inside for the seal to clear when I pull it.
It worked fine and pulled right out, afterward I dropped the case in the oven for about 20 min at 360 degrees to yank the smaller bearing out with a small allen key and vice grip. Out the oven quickly and simply slip in the inner hole of the bearing and pull. I ordered replacement bearings, which are 6201 and 6203, and can be had for a few bucks a piece shipped to the house.
You'll need a 1 1/4" pipe cap, I could only find the galvanized one for a couple dollars more, $4.50 vs. $2.50. You'll also need a 6mm x 1.00 bolt about 3" long and the matching nut. I center punched and drilled a hole in the middle and had to grind down the threads on the inside for the seal to clear when I pull it.
It worked fine and pulled right out, afterward I dropped the case in the oven for about 20 min at 360 degrees to yank the smaller bearing out with a small allen key and vice grip. Out the oven quickly and simply slip in the inner hole of the bearing and pull. I ordered replacement bearings, which are 6201 and 6203, and can be had for a few bucks a piece shipped to the house.
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