Don't bother, you'll most likely f**k up the bearing.
You can buy/rent a press cheap, or as above, just get a garage to do it for buttons.
When you've seen a bearing 'ping' out of the WBH - you'll be less inclined to bodge!
There's two things I don't like messing with when working on cars, assembly/disassembly of springs+struts and pressing things!