5210K belongs to TIMKEM  Angular contact ball bearings, double row, Light 5200 series, which are available in both Conrad and maximum capacity types. And the bearing meet the demand for increased axial and radial rigidity in applications where the design limits space. And the Suffix K denotes Conrad, Suffix W or no suffix indicate maximum capacity type.

More details can be learned from  TIMKEN angular contact ball bearing 5210K technical data below:

                 

d: 50mm
D: 90mm
B: 30.17...

TIMKEN LM742745-LM742710 is a TS  tapered roller bearing, single row, which consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft. And TS type is the most basic and most widely used type of tapered roller bearing.

Product data of  TIMKEN Tapered roller bearings LM742745-LM742710

Series                                        LM742700

Cone Part Number                  LM742745

Cup P...