调心球轴承外圈滚道呈球面，具有调心性能，因此可自动调整因轴或外壳的挠曲或不同心引起的轴心不正。 调心球轴承是外圈滚道加工成球面形、内圈有两条深沟滚道的双列球轴承，具有调心性能。其主要用于承受径向负荷，在承受径向负荷的同时，也可承受少量的轴向负荷，但一般不能承受纯轴向负荷，其极限转速较深沟球轴承低。该类轴承多用于在负荷作用下易发生弯曲的双支承轴上，以及双承座孔不能保证严格同轴度的部件里，但内圈中心线与外圈中心线的相对倾斜度不得超过3度。 主要用途:机电设备、塑料机械、办公器械、纺织机械传动轴、医疗器械、健身和运动器材。型号有：NKI10/20 NKI100/30 NKI100/40 NKI12/16 NKI12/20 NKI15/16 NKI15/20 NKI17/16 NKI17/20 NKI20/16 NKI20/20 NKI22/16 NKI22/20 NKI25/20-TV NKI25/30 NKI28/20-TV NKI28/30 NKI30/20-TV NKI30/30-TV NKI32/20 NKI32/30 NKI35/20-TV NKI35/30 NKI38/20 NKI38/30 NKI40/20-TV NKI40/30-TV NKI42/20 NKI42/30 NKI45/25-TV NKI45/35-TV NKI5/12-TV NKI5/16-TV NKI50/25 NKI50/35 NKI55/25-TV NKI55/35 NKI6/12-TV NKI6/16-TV NKI60/25 NKI60/35 NKI65/25 NKI65/35 NKI7/12-TV NKI7/16-TV NKI70/25 NKI70/35 NKI75/25 NKI75/35 NKI80/25 NKI80/35 NKI85/26 NKI85/36 NKI9/12 NKI9/16 NKI90/26 NKI90/36 NKI95/26 NKI95/36 NKIA59/22 NKIA5901 NKIA5902 NKIA5903 NKIA5904 NKIA5905 NKIA5906 NKIA5907 NKIA5908 NKIA5909 NKIA5910 NKIA5911 NKIA5912 NKIA5913 NKIA5914 NKIB59/22 NKIB5901 NKIB5902 NKIB5903 NKIB5904 NKIB5905 NKIB5906 NKIB5907 NKIB5908 NKIB5909 NKIB5910 NKIB5911 NKIB5912 NKIB5913 NKIB5914 NKIS15 NKIS17 NKIS20 NKIS25 NKIS30 NKIS35 NKIS40 NKIS45 NKIS50 NKIS55 NKIS60 NKIS65 NKS20 NKS22 NKS24 NKS25 NKS28 NKS30 NKS32 NKS35 NKS37 NKS40 NKS43 NKS45 NKS50 NKS55 NKS60 NKS65 NKS70 NKS75