Any advice/do's/dont's on removing old bearings, fitting new ones?
make sure you have any and all retaining clips out before driving it
out. Try and drive it out straight. Try not to hit the housing.
Make sure you have the same number of seals on the new bearings as
you ought to have. Find a bit of tube which will rest evenly on the
outer race not on the inner to use as a drift. Use the biggest hammer
you can find and "tap" with it. The momentum of the hammer does all the
work. Remember to put all your circlips and dustseals etc back in the
Bronze bearings are different of course.....
And so are some other bearings. On some, there is not enough meat behind the bearing
to take even a "gentle" hammer blow. Harley Evo gearbox main
bearings are a case in point.
In this case it is probably better to either fork out for the pukka bearing tool or make up
a simple puller. And guess which is cheaper. A simple
puller can also be used to extract bearings, remove and replace bushes and
gudgeon pins. Just use a bit of care and common when using them to ensure
that you are pulling straight.
See Fig1 and Fig2
This page last updated 27/09/02