Explanation of the letter meanings in the FAF157DRN180M4BE122HR/FK/TF/EH7C/AMB/AL/ERF/DUB/RI2 reducer model designation. The complexity and standardization requirements of industrial reducer model coding. The importance of correctly understanding the model designation for equipment selection, maintenance, and troubleshooting. A step-by-step breakdown of the meaning of each letter and number in the FAF157DV225M4BE122HR//RI2 model designation. Corresponding explanations of technical parameters and functional applications are provided.

II. Reducer Section (FAF157)

1. F: Series Code - Indicates "F-series reducer," typically a parallel shaft helical brakes motor-reducer, characterized by high torque and high rigidity.

2. A: Output Method - "Hole output" design, indicating that the output shaft is a hollow shaft (with keyway or expansion sleeve connection), suitable for flange mounting or direct load connection.

3. F: Mounting Interface - "Flange mounting" structure, ensuring a tight connection between the reducer and the Geared motor or equipment.

4 157: Specification Model - Gearbox size code, similar to "clothing size," corresponding to core parameters such as center distance and gear module (refer to the specific manufacturer's size table).

III. Motor Section (DRN180M4)

1 DRN: Motor Type - "Three-phase asynchronous motor" (Drehstrom-Asynchronmotor), standard industrial AC motor.

2 180M4: Motor Specification - Frame size (shaft center height 180mm).

3 M4: Number of Poles (4-pole motor, synchronous speed approximately 1400rpm).

IV. Brake and Control Unit (BE122HR)

1 BE122: Brake Model - "Spring brake".

2 HR: Manual Release Function - Supports manual brake release for easy debugging or emergency load relocation.

V. Installation and Protection Configuration (/FK/TF/AL/ERF)

1 FK: Installation Method - "General flange-mounted motor with feet," combining foot support and flange connection for enhanced stability.

2 TF: Thermal Protection - Built-in thermal switch or PTC sensor to prevent motor overheating damage.

3 AL: Cooling System - "Metal fan" for improved heat dissipation efficiency, suitable for high-load or frequent start-stop scenarios.

4 ERF: Bearing Structure - "Reinforced roller bearing on the drive side" to improve output bearing load capacity and adapt to heavy impact loads.

VI. Electrical and Monitoring Accessories (/EH7C/AMB/DUB/RI2)

1 EH7C: Encoder Type - Incremental or absolute encoder (specific resolution needs to be checked with the manufacturer's code), used for speed/position feedback.

2 AMB: Junction Box Configuration - "Insertion head with double clamp locking clips", improved protection level (e.g., IP65), includes pressure testing contacts for easy diagnostics.

3 DUB: Brake Monitoring Unit - "Diagnostic microswitch plug-in" for real-time monitoring of brake status (wear, release status).

4 RI2: Insulation Class - "Reinforced winding insulation", improved resistance to partial discharge, suitable for high-frequency, high-voltage, or humid environments.

VII. Summary and Application Recommendations

1. Model Overview - Based on the above codes, this reducer is: F-series flange-type bore output Gearboc (157 specification) + DV225M4 motor + brake (BE122+HR) + thermal protection/encoder/diagnostic accessories, etc.

2. Selection and Maintenance Tips: Specific performance (such as reduction ratio, torque, voltage) needs to be confirmed in conjunction with the manufacturer's parameter table. Ensure the brake voltage and encoder signal protocol match system requirements. Regularly check the DUB diagnostic unit to ensure braking safety.

3. Recommended Consultation: Refer to the manufacturer's technical manual for detailed dimensions and electrical parameters (contact customer service in the lower right corner). This outline provides a systematic understanding of the technical meaning of each code in the reducer model, assisting engineers in quickly selecting the right model or troubleshooting problems.

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