The R166539320 is a standard steel ball bearing slide from Bosch Rexroth, Germany, size 35. It features an FKS (short flange, standard height) design, offering high load capacity and a compact footprint.
The R166539320 KWD-035-FKS-C0-H-1 slide offers H-grade high precision and C0 preload-free rating. It does not include a ball chain, and due to Rexroth's superior manufacturing standards, it is interchangeable with any guide rail of the same size. It is widely used in precision machinery and space-constrained automated equipment.
Key Features of the R166539320 FKS Slider:
Space Optimization: The FKS's short design is suitable for equipment with limited longitudinal space and strict requirements on slider length.
High Load Capacity: The flange design provides a wider mounting surface, offering high rated load and rigidity in all four main load directions.
Original Manufacturer Interchangeability: Rexroth sliders and rails are manufactured with extremely high precision, allowing for seamless interchangeability with any Rexroth ball rail of the same specifications.
Core Application Scenarios:
Automation and Robotics: Three-axis Cartesian robots, high-speed gantry robots, cylinder/motor pushrod guides
Electronics and Semiconductor Manufacturing: PCB drilling/placement machines, chip testing and sorting machines, screen dispensing/film application machines
Packaging and Logistics Machinery: Bag making and sealing machines, labeling machines, multi-row sorting systems
Medical and Laboratory Automation: Blood/sample analyzers, medical imaging equipment
Item |
Specification |
Part Number |
R166539320 |
Ball Runner Type |
FKS |
Size |
35 |
Preload Class |
C0 |
Accuracy Class |
H |
Sealing |
SS – Standard Seal |
Ball Chain |
Without Ball Chain |
Guide Block Width [mm] |
100 |
Guide Block Length [mm] |
84.9 |
Guide Block Height [mm] |
40.40 |
Guide Block Height with Rail [mm] |
48 |
Mass [kg] |
1.20 |
Rated Dynamic Load [N] |
36600 |
Rated Static Load [N] |
49300 |
Rated Dynamic Torque Load [Nm] |
790 |
Rated Static Torque Load [Nm] |
1060 |

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