单向平面推力球轴承是一种分离型轴承，轴圈、座圈可以和保持架、钢球的组件分离。轴圈是与轴相配合的套圈，座圈是与轴承座孔相配合的套圈，和轴之间有间隙；推力球轴承只能承受轴向负荷，单向推力球轴承只能承受一个方向的轴向负荷，双向推力球轴承可以承受两个方向的轴向负荷。推力球轴承不能限制轴的径向位移，极限转速很低，单向推力球轴承可以限制轴和壳体的一个方向的轴向位移，双向轴承可以限制两个方向的轴向位移。,51101,51102,51103,51104,51105,51106,51107,51108,51109,51110,51111,51112,51113,51114,51115,51116,51117,51118,51120,51122,51124,51126,51130,51132,51134,51200,51201,51202,51203,51204,5120551206,51207,51208,51209,51210,51211,51212,51213,51214,51215,51216,51217,51218,51220,51222,51224,51226,51228,51230,51232,51304,51305,51306,51307,51308,51309,51310,51311,51312,51313,51314,51315,51316,51317,51318,51320,51322,51324,51326,51406,51405,51406.51407,51408,51409,51410,更多平面推力球轴承单向平面推力球轴承（51000、29系列、F系列） 双向推力球轴承（52000系列）0-(LB)英制单向平面推力球轴承 带外罩壳单向推力球轴承特种平面推力球轴承（D(B)系列、带球面53系列）