Definition for roller bearing - Oxford Dictionaries Online (World English)

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	roller bearing (roll¦er bear\|ing) noun a bearing similar to a ball bearing but using small cylindrical rollers instead of balls. a roller used in a roller bearing.		More words in this category ball valve crosspiece kingbolt lube O-ring piston ring principle shim shoe siphon skid spring lock sync trailing wheel travel tune-up turbine virtual weld 1 wheel and axle Nearby Words roll-top desk roll-up Rolland, Romain rollaway rollback rolled gold rolled oats roller ¹ roller ² roller bearing roller blind roller coaster roller derby roller skate roller skating roller towel rollerball Rollerblade rollick