04-08-2012, 09:34 PM
Bob,
This is the price I paid. Original hub on the left - the replacement hub I made on the right. Notice that after my little faux-pax, I filled in the key slot with stainless steel infused epoxy. Why???
![[Image: P4080119.jpg]](http://img.photobucket.com/albums/v82/Highpwr/Carbide%20Grinder/P4080119.jpg)
Because... when the broach hit the edge of the hole it kicked it out at an angle and proceeded to cut right through the side of one end of the hub.
![[Image: P4080120.jpg]](http://img.photobucket.com/albums/v82/Highpwr/Carbide%20Grinder/P4080120.jpg)
After the epoxy had cured, I re-cut the keyway (straight this time...) leaving the upper portion as filler material in the tapered end. Luckily the "key" only contacts a short area in the back end of the hub where the slot was still straight with solid metal walls.
![[Image: P4080123.jpg]](http://img.photobucket.com/albums/v82/Highpwr/Carbide%20Grinder/P4080123.jpg)
So if this little warning helps to prevent one other person from making the same mistake I did - it will have been worth it.
This is the price I paid. Original hub on the left - the replacement hub I made on the right. Notice that after my little faux-pax, I filled in the key slot with stainless steel infused epoxy. Why???
Because... when the broach hit the edge of the hole it kicked it out at an angle and proceeded to cut right through the side of one end of the hub.
After the epoxy had cured, I re-cut the keyway (straight this time...) leaving the upper portion as filler material in the tapered end. Luckily the "key" only contacts a short area in the back end of the hub where the slot was still straight with solid metal walls.
So if this little warning helps to prevent one other person from making the same mistake I did - it will have been worth it.
Willie