Machining a Motorcycle crank bearing puller - installer

I am planning on doing a complete rebuild on my KTM LC4 engine. There are some commercial options for crankshaft main bearing pullers but I decided to make my own.
Idea behind this design is to heat the puller and it acts as a heat sink. Heat from the puller dissipates to inner bearing race and expands it thus allowing it to be pulled without any damage to crankshaft journals.

[@RustyInventions-wz6ir]

Just found your channel and subscribed. Nice work

[@SaabelGarage]

💪💪💪

[@davidevans8826]

Just use an ox acetylene torch to heat them up hit them with a chisel and fly off warm up the other bearing and the oven pop it on done

[@jimsvideos7201]

7:34 Looks like 😟
😅