Overview of RCSD and RCSD-ST Series Harmonic Reducers

The RCSD and RCSD-ST series are ultra-thin, cup-shaped harmonic reducers designed for applications requiring compact size and light weight. These reducers are particularly suitable for use in robot joints, aerospace, and semiconductor industries where space is limited.

Design Characteristics

• RCSD Series: Features an ultra-thin cup-shaped structure with an ultra-flat profile, emphasizing light weight and small size.
• RCSD-ST Series: An enhanced version of RCSD with even smaller size and weight, optimized for extremely limited space environments.

Performance Specifications

The document provides detailed numerical data on various performance parameters across different model ratios (14, 17, 20, 25, 32, 40). Key parameters include:

• Starting Torque (cN·m): Values vary by model and ratio, indicating the initial torque required to start the reducer.
• Stiffness (×10 N·m/rad): Provided for RCSD-ST series, indicating torsional rigidity at different ratios.
• Hysteresis Loss (arc min): Measurement of energy loss due to internal friction during operation.
• Rated Torque at 2000 r/min: Maximum continuous torque the reducer can handle at 2000 revolutions per minute.
• Allowable Peak Torque at Start and Stop: Maximum torque permissible during transient conditions.
• Allowable Average Torque and Maximum Momentary Torque: Operational torque limits for continuous and short-term use.
• Maximum Input Speed and Allowable Average Input Speed: Speed limits for safe and efficient operation.
• Backlash and Transmission Accuracy (arc sec): Indicators of precision and mechanical play within the reducer.
• Noise Level (dB): Operational noise emitted by the reducer.

Mechanical Limits and Dimensions

The document includes dimension tables and outline drawings for RCSD-I and RCSD-I-ST series, highlighting critical limited dimensions such as φC, L3, and L4. These dimensions are essential for integration into mechanical assemblies.

Torque and Speed Ratings

Additional data on buckling torque, ratcheting torque, and allowable speeds are provided, ensuring users can select appropriate models based on mechanical load and operational speed requirements.

Summary of Key Recommendations and Usage Notes

• RCSD series is recommended for applications where space is limited but slightly larger size is acceptable.
• RCSD-ST series is preferred for extremely constrained spaces due to its reduced size and weight.
• Careful consideration of starting torque, rated torque, and speed limits is critical to ensure reliable operation and longevity.
• Backlash and transmission accuracy values should be matched to application precision requirements.
• Noise levels should be considered in environments sensitive to operational sound.

Overall, the RCSD and RCSD-ST series harmonic reducers offer a balance of compact design, mechanical performance, and precision suitable for advanced industrial applications.