Rollerblade wheel bearings

I looked around locally for 60mm rollerblade wheels and found some at a non-chain sporting goods store. I just now tried pushing the 608 bearings into the wheels. I can’t push them in manually. Is it supposed to be a snug fit (i.e. a mallet)? Should I return the wheels because I probably overpaid for them?

Picture? The if it is close they should fit. The only other size I can think of for these wheels is very small.