Sauer Danfoss RR310DMSR=50,40

The Sauer Danfoss RR310DMSR=50,40 refers to a discontinued hydraulic motor model. The “RR” series, which was an orbital motor product line, was originally from Sauer-Danfoss, a company that was later acquired by Danfoss. The full product information is no longer widely accessible through public channels, but some documentation may be available directly from Danfoss or specialized suppliers.

Interpretation of the model code

The specific part number provides clues about its configuration, following the internal nomenclature that Sauer-Danfoss used for its motors:

• RR: Indicates the motor’s series. The RR series, also known as the O-series, was part of a robust family of orbital motors.
• 310: Represents the motor’s displacement, a crucial factor determining its performance characteristics. The displacement would be approximately 310 cm³/revolution.
• D: This typically specifies a mounting flange or port option.
• M: Refers to the motor’s output shaft type.
• S: Likely denotes a specific sealing configuration for the motor.
• R: Refers to the motor’s direction of rotation.
• =50,40: This last part is unusual and is most likely a custom or vendor-specific addition to the part number, rather than a standard Danfoss code. It could relate to:
  • Maximum speed or pressure limits for that specific motor configuration.
  • A special valve setting for a specific application.
  • A revision code or other factory designation.

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