THRUST BALL BEARING, FROM DIA 10MM - 100 MM.51100--511/800, 51200--512/1000, 51305--513/1000, 51405--514/100...(1). Flat-race thrust bearings:Consist of a pair of flat washers separated by the ball complement and a shaft-piloted retainer, so load capacity is limited. Contact stresses are high and torque resistance is low. The prime advantage of flat-race thrust bearings is they permit eccentricities, because there are no grooves to restrain one race from wandering slightly with respect to the other.(2). One-directional, grooved-race thrust bearings:It have grooved races very similar to those in radial bearings. Thrust bearing capacity is about twice that of the flat-race bearing and limiting speed is about three times as high. However, a thrust bearing has a limiting speed, which is still quite low because balls spin at high speeds.(3). Two-directional, grooved-race thrust bearings:It consist of two stationary races, one rotating race, and two ball complements. Thrust bearing characteristics are identical to those of the one-directional bearing, except thrust bearings can support thrust in both directions. More Product Features HS Code: 8482104000Trademark:QWModel NO.: 51100, 51200, 51300, 5140052200 53200 SERIESStandard:ISOProductivity:500, 000 pcs/monthUnit Price/Payment:TT / L/COrigin:CHINAPacking:EXPORT STANDARDMin. Order:100Transportation:BY SEALoad Direction:Thrust Spherical Plain BearingStructure:To The HeartAdd Lubricant:Self-lubricatingRod End:GeneralOuter Structure:Two Semi-OuterExport Markets:North America, Southeast Asia, Africa, Mid East, Eastern Asia