Thrust ball bearings can handle loads in the axial direction only. Bearing ring mounted on the shaft are called shaft washers,and those mounted in the housing are called housing washers.Both washers contain raceways for the balls.
Thrust ball bearings are available as both single and bidirectional types.The bidirectional thrust bearing incorporates a third washer and an additional set of balls.This center washer is located in the axial direction by a shaft shoulder and sleeve.
Care must be taken in handling to prevent damage to the separable rings and ball assemblies.

	Series			Bore (mm)
	Plain	Align	Housing
Metric	51100	-	-	10~1250
	51200	53200	53200U	10~1250
	51300	53300	53300U	10~1250
	51400	53400	53400U	25~1250
	52200	54200	54200U	15~500
	52300	54300	54300U	25~500
	52400	54400	54400U	25~500
	2900	-	-	10~500
Inch				9.525~ 1016.00 (3/8"~40")

Typical Applications:
Live Centers in Lathes,Lead Screws,Automotive Clutches,Kingpin Supports,and Speed Reducers