Bosch Rexroth R165351310 Linear Ball Runner Block - KWC-055 FLS

Industrial Applications and System Integration

The R165351310 model by Bosch Rexroth is a precision linear ball runner block engineered for use with size 55 guide rails in industrial automation systems. Designed for heavy-duty applications, this block serves as a key component in units integrating a bearing housing or linear guide assembly. Typical uses include CNC machine tables, industrial robots, automated transport systems and high-precision manufacturing cells. With its flange-mounted “FLS” design and high-accuracy classification, the unit enables smooth, stable motion in both radial and axial directions—offering reliability even under demanding conditions.

Key Advantages and Technical Features

• High Load Capacity: Designed to meet dynamic loads up to approximately 139,000 N and static loads near 245,000 N, enabling it to withstand substantial radial, axial and moment loads.

• High Accuracy & Preload Class: Classified in accuracy class H and preload class C1, ensuring minimal run-out, low vibration and superior repeatability for motion control systems.

• Flange Mounting & Size 55 Compatibility: The KWC-055 FLS design features flange mounting and standard height, facilitating direct integration into modular systems with size 55 guide rails.

• Robust Construction for Industrial Duty: Built from carbon steel with precision manufacturing, offering resilience to mechanical stress, duty cycles, and maintenance-friendly service life.

• B2B Stock and Supply Chain Ready: Offered for industrial purchasing with real-world readiness, helping maintenance and procurement departments minimise downtime and optimise part replacement logistics.

Technical Specifications (Selected)

• Type: Linear ball runner block (single rail carriage)

• Model number: R165351310 - KWC-055 FLS

• Nominal guide rail width: 55 mm

• Length of block: approx 199 mm; Width 140 mm; Height 70 mm

• Accuracy class: H (High)

• Preload class: C1 (Moderate)

• Dynamic load rating (C): approx 139,000 N

• Static load rating (C₀): approx 245,000 N

• Material: Carbon steel (industrial)

• Typical operating temperature range: -10 °C to +80 °C

• Recommended speed range: up to ~3 m/s

FAQ - Frequently Asked Questions

Q1: What kind of applications suit the R165351310?
A: It is ideal for industrial automation systems requiring high precision linear motion—CNC machine tables, gantry systems, heavy-duty transport modules, and robotics employing size 55 guide rails.
Q2: What does “FLS” represent in the model code?
A: “FLS” stands for flange mounting, long block construction and standard height—designed for enhanced rigidity and simplified installation in linear modules.
Q3: What is the significance of preload class C1?
A: Preload class C1 indicates a moderate preload in the carriage assembly that ensures better motion stability, reduced clearance and improved dynamic performance.
Q4: Are mounting holes and dimensions compatible with standard size 55 rails?
A: Yes—this model is dimensionally compatible with size 55 guide rails and can replace or integrate with standard block systems without redesign.
Q5: Do you support fast B2B shipping?
A: Yes—this product is available for rapid dispatch, supporting 24-hour shipment to minimise machine downtime and streamline procurement.