They do include spares. My 2¢- I built a set of the r1 axles for a mog build I made and discovered very quickly that the stock bearings are the biggest pieces of crap China has ever made. 1 of the dust shields came off of 3 of the smaller bearing and the shield ate up most of my portal gears. After replacing the gears I upgraded to Fast Eddies bearings and haven't had any failures in over 6 months as opposed to 3 separate failures within 2 weeks with the crappy stock bearings