check out the posts on here on google search for fitting front wheel bearings. the inner race has to be supported for pressing in and ideally needs spacers of the correct sizes to achieve this. some have managed to fit them with a vice and other means , but a press is really what is required. im sure you could take the hub to someone and pay a small fee , rather than risk trashing the bearing and then doing the job twice ,in costs and time. worth thinking about ....