A waterproof cover covers the axial gap and serves to suppress {HEAD ~ water} from the outside from reaching {TAIL ~ the bearing} 
from reaching
A waterproof cover covers the axial gap and serves to suppress { HEAD ~ water } from the outside from reaching { TAIL ~ the bearing }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL