向心滚针和保持架组件(滚针轴承)是独立的滚动元件，其保持架的两引导面间距宽广，既能精确引导滚针，又可保持滚针的正确位置。该类轴承适用于轴和座孔可作为滚道的场合，只须将轴和轴承座孔滚道加工至规定的尺寸精度和几何精度，即可确保最小空间的高旋转精度。向心滚针和保持架组件是由保持架和滚针组成的完整轴承单元，主要用于 轴和轴承箱可作为滚道场合，且有以最小径向结构空间下承受高负荷和高刚性的 能力。在高精度的轴和座孔滚道下，可获得较高的旋转精度；工作间隙可根据滚 针、安装轴和座孔进行调整，安装十分便利，是在恶劣条件下使用的非常经济的 轴承。 对于无法淬硬的轴和座孔，可使用本公司专门生产的IR标准圈进行镶套处理； 广泛用于汽车、摩托车、工程机械的传动轴和齿轮箱及连杆轴配置。 △结构形式
该类轴承有单列K型和双列K…ZW型，对整体无法装配时，如曲轴凹颈处的支 承，可使用特殊的剖分结构单列K…D型和双列K…ZWD型。常州仟盈轴承有限公司并设计有车制 和冲压、M型和K型等多种结构型式供不同场合选择使用，也可根据用户特殊结构 要求设计。

 
轴承代号  结构特点 
K/KS  单列/单列剖分式 
KK/KKS  双列/双列剖分式 
KZK  连杆曲柄销用 
KBK  连杆活塞销用 
KNL  长圆柱滚子和保持组件 

DF向心滚针和保持架组件有单列K型与双列K......ZW型，而且在整体保持架无法安装时，可使用特殊的剖分型滚针和保持架组件，其轴承型号后置加“D”，即K......D,K......ZWD。

前置代号：
KBK-活塞销用滚针和保持架组件
KZK-曲柄销用滚针和保持架组件
WJ-英制滚针和保持架组件

K8X11X8TN
K8X11X10TN
K8X11X13TN
K8X12X10TN
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K10X13X13TN
K10X13X16TN
K10X14X10TN
K10X14X13TN
K10X16X12TN
K12X15X9TN
K12X15X10TN
K12X15X13TN
K12X16X8TN
K12X16X10TN
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K14X18X17
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K15X19X24 ZW
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K22X30X15TN
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K23X35X16TN
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K24X28X17
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K26X30X22
K27X32X17
K28X32X16.5
K28X32X17
K28X33X13
K28X33X17
K28X33X27 TN
K28X34X17
K28X35X16
K28X35X18
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K30X40X30
K30X35X26
K30X42X44.1
K32X37X13
K32X37X17
K32X37X27
K32X37X28 TN
K32X38X16
K32X38X20
K32X38X26 TN
K32X39X16
K32X39X18
K32X40X20
K32X40X36
K32X46X32
K32X40X42 TN
K35X40X13
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K35X40X25
K35X40X27 TN
K35X40X27
K35X40X30
K35X42X16
K35X42X18
K35X42X30
K35X43X18
K35X45X20
K35X45X30
K35X45X49
K35X40X30 ZW
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K37X42X27
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K39X44X26 ZW
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K40x47x18
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K40x45x30 ZW
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K42x47x17
K42x47x25 TN
K42x47x27
K42x48x35
K42x50x18
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K42x47x30 ZW
K43x48x17
K43x48x27
K43x50x18
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K45x50x32 TN
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K45x52x21 TN
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K45x53x28
K45x59x18 TN
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K70x78x46 ZW
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K80x88x46 ZW
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K265X280X50
K285*300*50