Bolt-on Hubs yog tsim los rau kev siv taper bushes, nrog rau BF thiab SM hom.
Lawv muab cov kev daws teeb meem yooj yim ntawm kev ruaj ntseg kiv cua rotors, impellers, agitators thiab lwm yam khoom siv uas yuav tsum tau muab khi ruaj khov rau cov ncej.