Axle bearing replacement ?

Any one changed these before. Is there somewhere on the net that has a nice how to write up. I am going to tackle mine this weekend. I bought all the parts through a friend. I am hoping they are the non adjustible type (like the MP green ).Although they are a generic brand not MP. There stuff is too damn expensive anymore . I do not know how to tell by looking at them ? This is a new one for me . Any suggestions would be greatly appreciated. Thanx, Dave.