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3/H Series ID 3/H
The Bonfiglioli 3/H Series combines the high torque density of planetary gear units with the robustness and high-speed operation of the helical bevel heavy-duty products. This configuration can provide great power transmission in a very compact space, thanks to its angular layout. The 3/H Series can also come with a set of features such as hydraulic couplings or cooling circuits, adapted according to customers' needs..


  • Key benefits

    - Extremely high transmissible torque and power
    Suitable for all heavy-duty applications
    - High shock resistance
    - Reliability
    - Easy maintenance
    - High customization level
  • Main options

    Auxiliary thermal devices
    Forced Lubrication
    Backstop devices
    Torque arm
    Base plates
    Fluid couplings
    Shoe brakes

    Furthermore, special, complete and custom Power pack solutions are available as per customer needs.
  • Torque range

    135,000 ...1,750,000 Nm
  • Torque range (IU)

    1,194,850 … 15,488,805 in-lb
  • Gear ratios

    89.1... 1,070
  • Certifications

    Certificate of compliance
    Inspection certificate
  • Output

    Solid cylindrical shaft
    Solid shaft with keyway
    Solid shaft with supporting feet
    Solid shaft with keyway and supporting feet
    Hollow shaft with shrink disc
    Hollow shaft with keyway
  • Motors

    Input with solid shaft
    Input with e-motor coupling:
    - M, ME, MX [compact asynchronous]
    - BN, BE, BX [IEC asynchronous]
    - BSR [IEC reluctance]
    - BS [IEC single phase]
  • Motors options

    Thermistors and thermostat sensors
    Independent forced cooling
    Incremental, sin/cos absolute single/multi-turn encoders
    Anti-condensation heaters

Download Documents

Brochure Heavy Duty


Product Catalogue –Right Angle Gearmotors & Units-3H