The Bosch Rexroth R162421420 is an SLH type (narrow, long, tall) ball slide block belonging to the ball guide system. This R1624 ball slide block is commonly used in applications where lateral space is limited and high rigidity is required.
Key Advantages of the R162421420 SLH Ball Slider:
High Rigidity and Low Friction: The extended design combined with a four-row O-type ball arrangement provides higher torque resistance and system rigidity compared to standard narrow ball slides (SLS), while effectively reducing friction fluctuations under external loads.
Ultra-High Stroke Accuracy: Utilizing Rexroth's patented ball entry zone design, the slider's motion smoothness and travel accuracy are improved by up to 6 times.
Unlimited Interchangeability: This slider can be freely combined and interchanged with any Rexroth standard ball guide of the same specification (25) such as SNS/SNO, reducing spare parts inventory costs.
Long Maintenance-Free Cycle: Pre-lubricated at the factory, with omnidirectional lubrication nozzles, it can achieve long-term lubrication for several years, reducing maintenance frequency.
Bosch Rexroth R162421420 Ball Slider Application Industries:
CNC Machine Tools
Automation Equipment
Semiconductor and Electronics Manufacturing
Industrial Robotics
Laser and Optical Equipment
Packaging and Printing
Medical Equipment
New Energy and Lithium Battery Equipment
Precision Measurement and Testing
Aerospace and Scientific Research Equipment
Item |
Specification |
Part Number |
R162421420 |
Ball Runner Type |
SLH |
Size |
25 |
Preload Class |
C1 |
Accuracy Class |
N |
Sealing |
SS – Standard Seal |
Ball Chain |
Without Ball Chain |
Guide Block Width [mm] |
48 |
Guide Block Length [mm] |
107.9 |
Guide Block Height [mm] |
33.90 |
Guide Block Height with Rail [mm] |
40 |
Mass [kg] |
0.8 |
Rated Dynamic Load [N] |
37300 |
Rated Static Load [N] |
52500 |
Rated Dynamic Torque Load [Nm] |
530 |
Rated Static Torque Load [Nm] |
750 |

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