[1] : The Collaborative International Dictionary of English v.0.48

roller bearing \roll"er bear"ing\ mach.
   a bearing containing friction rollers.
   webster 1913 suppl.

[2] : WordNet (r) 2.0

roller bearing
     n : bearings containing small metal balls syn: ball bearing,
         needle bearing
see also:
ball bearing needle bearing 

Bearing >> B Words
Bearing, definition of term: Bearing
bearing_pag1.html

Roller >> R Words
Roller, definition of term: Roller
roller_pag1.html

Roller Skating >> R Words
Roller Skating, definition of term: Roller Skating
roller+skating_pag1.html

Roller Coaster >> R Words
Roller Coaster, definition of term: Roller Coaster
roller+coaster_pag1.html

Ball Bearing >> B Words
Ball Bearing, definition of term: Ball Bearing
ball+bearing_pag1.html