Hi Norn,
I don't think there is any chance of breaking the bearing clamp ,that's why I use two standard bolts .(the ones with the orange arrows in pic above)
The standard bolts will stretch and break before the clamp can be damaged.
The clamp I have I paid $5 for, but it was high quality ,it was just a clearance item being sold off.
I usually get a heap of pulling force on the puller then put the side of the boss on solid steel then a few hammer blows
on the opposite side and they always pop loose, although If you hit the boss too hard it can split down the side.
Cheers
Max.
