Thrust Ball Bearing Thrust Ball Bearing 51124 is a particular type of rotaryBearing . Like other bearings they permit rotation between parts, but Thrust Ball Bearing 51124 is designed to support a predominately axial load. Structures: 1.51000type single-direction thrust ball bearings, this type of bearing can onlyaccommodate axial load on one direction and can control the axial movement onone direction of the shaft and housing. 2.52000type double-direction thrust ball bearings, this type of bearings canaccommodate axial load on double direction and can control the axial movementon double direction of shaft and housing. 3.560000 type thrust angular-contact ball bearing, as this structure can carryaxial load and radial simultaneously. Cage materials Whenthe outside diameter is equal or lesser than250mm, thrust ball bearings generally adopt pressedsteel sheet cages, when the outside diameter is more than250mm, it will adopt solid cages. Minimum axial load Whenthe thrust ball bearing is operating, if the applied axial load is too small, the axial direction is not tightly pressed, then acted by centrifugal force, the steel ball will slip and displace and destroy the normal operation of thebearings. To avoid the occurrence of such case, an axial load, Famin must beapplied when the thrust ball bearings is working. The calculating formula is: Inthe equation, Famin Minimum axialload (kN)