A while back there was a post about wanting or finding out different ways to remove and install bearings. I suggested go to a shop that deals in heavy equipment and ask and watch them, because they do in all the time or a minning company they work with bearings all the time.
Some of the things that have been mentioned makes me wonder where that information came from.
One thing you never do is put a bearing on pre-greased. Pressing a bearing on is quite time consumming and need a press. Next driving one on with a piece of pipe for more than to get the bearing to seat properly is not a good idea. As for heating a bearing up and takiing the hardness out of the bearing is untrue. The way that happens is when you take it to it critical temperature point of turning to or just starting at its melting point about 2200"F
Fjrray gave you the one of the easiest ways to install a bearing by heating it up with a tourch. Thats how most heavy eqquipment mechanics do it.
Here is a way to put on a new bearing with good results and no problems. remember there are different ways to heat a bearing up, such as... with a tourch ,in a oven made for heating a bearing
I have seen them use oil heated to about 400"F.
First you need to prerpare the shaft so it is nice and clean, no oil no grease and try not to handle it
to much the heat from your hands will expand the shaft and it makes it hard for the bearing to slide down on the shaft. Never any grease on or in the bearing .Have the shaft in a vise the area clean and have a brass hammer and a drift punch handyjust in case you need it if it does not set all the way down.
Now the shaft is in the vise clamped and secured tightly now you get the bearing and heat it up to about 400 to 500 degrees F.. You only heat up the inner race that comes in contact with the shaft to the temp. stated before. NOw you use what ever you have a welding leather glove a pair of channel locks drop the bearing on and it should bottom out if not while it is still warm take your punch and brass hammer and tap on it. The bearing is set and is where it needs to be. Let cool then pack the bearing with your choice of grease ( not smear it on the out side of the race and bearing needles.
Guaranteed no problems to work as it should
If you take a piece of pipe and pound on the inner cone of a bearing and it is a quality bearing you can not hurt the inner cone the pipe will mushroom first and score the shaft when removing the pipe.
there are other ways to install bearing and some require a little different method but for the steering head this is how I would do it. I usse this method when I have to work with bearings that require this t ype of installation.
weekend rider