I've learned this trick from Taryal fixes All, he showed to heat it up and blast it with water. Works every time. I've never heated the spindles always the bolts. The spindles are made of weaker material. Always works for me. But if this also works then hell yeah do it
There is always a risk damaging things when using heat. Especially when you use the bigger acetylene torches . However this was just an option to getting the bolts off if they are stuck and you have no other option. But I can tell you I probably done this method about 100 times over the years and I've never damaged a bearing. But yes you make a good point thank you for tuning in and thank you for the comment. There's always risk of damage.