REXROTH R162339420 is a narrow, elongated ball slider in the Bosch Rexroth SLS R1623 series ball guide system. It is specifically designed for applications with limited lateral space and requiring high torque capacity, offering core advantages such as high omnidirectional load rating, high rigidity, and unrestricted interchangeability.
KWD-035-SLS-C0-N-1 is the complete code for the parameters of the R162339420 slider. 35 represents the size specification, SLS indicates that the slider has a narrow, elongated structure (high rigidity, saving lateral space), C0 indicates no preload, and N indicates the standard accuracy class.
The main features of the SLS ball slider include:
Narrow structure, saving installation space
The narrow lateral width of the SLS slider is suitable for applications with limited internal space, while maintaining a longer slider length to increase load capacity.
Four-row ball bearing design, equal load in four directions
Utilizing a four-row ball bearing structure with a 45° contact angle, it can withstand the same rated load in all four main directions (up, down, left, and right), providing high rigidity and balanced force distribution.
High precision and high repeatability positioning
Available in N/H/P/XP precision grades to meet the needs of precision equipment, high-speed motion platforms, CNC applications, etc.
Interchangeable guide rails and sliders
Within the same precision grade, sliders and guide rails can be freely combined, facilitating maintenance and simplifying spare parts management.
Item |
Specification |
Part Number |
R162339420 |
Ball Runner Type |
SLS |
Size |
35 |
Preload Class |
C0 |
Accuracy Class |
N |
Sealing |
SS – Standard Seal |
Ball Chain |
Without Ball Chain |
Guide Block Width [mm] |
70 |
Guide Block Length [mm] |
139.0 |
Guide Block Height [mm] |
40.40 |
Guide Block Height with Rail [mm] |
48 |
Mass [kg] |
1.70 |
Rated Dynamic Load [N] |
66700 |
Rated Static Load [N] |
116000 |
Rated Dynamic Torque Load [Nm] |
1440 |
Rated Static Torque Load [Nm] |
2500 |

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