B Series
Helical bevel gear reducers - cast iron

Helical bevel gear reducers

B - IB - PB - CB

The technological content of B-Series gear reducers allows for an extraordinary performance/lifespan ratio. These highly versatile gear units are successfully used in a vast number of industrial and civil applications. B-Series units offer excellent value for money and output torque/weight ratio, especially considering that they need very limited servicing. 

Available in cast iron from size 063 to 163.

Certifications Available: ATEX 2GD/3GD

Warranty: Two years from date of delivery.

Characteristics

  • Sizes: 060-080-100-125-140-150-160 
  • Available versions: B - fitted for motor coupling, IB - with input shaft, CB - with compact motor, PB - fitted for motor coupling with flexible joint 
  • Casing with feet FC, flange SC and universal UC
  • Power up to 90 kW 
  • Gears hardened and tempered with shaved or ground profile 
  • Gearing with 3 reduction stages 
  • Gleason spiral bevel gear pairs with run-in profile, mounted as second reduction stage for a higher resistancee 
  • Reduction ratios between 5,71 and 187,24 
  • Torque max 13.000 Nm and admissible radial loads max 80.000 N 
  • High-strength casings optimized with FEM analysis and input and output flanges of grey cast-iron G200 to ensure top level performances and high reliability
  • Load capacity calculated and verified according to ISO 6336 and AGMA 2001
  • Painted with RAL 5010 blue epoxy-polyester powder
  • Accessories: torque arm, output flange, output shaft, shrink disk, backstop device, protection cover kit, viton oil seals, reinforced output, assembly/disassembly kit
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  • Product check list

    To enable us to identify the correct product for your requirements please complete the below form.

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    CUSTOMER INFO
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    APPLICATION DATA
    Motor Type

    Motor Information
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    Protection degree

    Gearbox speed (rpm)

    Speed range (rpm)

    Required torque (max/average)

    Description of the application

    Stop-Starts/Hr (Qty) - Duty

    Hours-Run/Day

    Casing version

    Gearbox mounting

    Mounting position (see catalogue)

    Loading (Please refer to the “Service Factor” paragraph on the catalogue)

    Fr/Fa radial/axial load

    Connection(direct, coupling, belt drive, chain...)

    Minimum Service Factor required

    Certifications/ Regulations required
    ENVIRONMENT CONDITIONS

    Presence of external heat sources ((from sun, environment and/or machines)

    Installation environment
    Type of atmosphere
    The following information is useful and necessary to identify the correct product according to the European ATEX Directive 94/9/CE. Please, fill the blank spaces of this document. Important note: Motovario cannot supply products for Atex 1D/1G or Zone 0

    Type of zone
    GAS
    DUST

    Permitted surface temperature
    GAS (Temperature class)

    DUST

    Motovario, if above information is provided, can confirm harmonization to EN1127-1 and from EN13463-1 to EN13483-8 for: H/HA Series - Helical gear reducers, B/BA Series - Helical bevel gear reducers, S Series - Shaft mounted gear reducers, NMRV/NMRV-P Series - Worm gear reducers.
    In case of order, the information above must be provided to enable the supply of the product necessary certification, file number and data for the nameplate.

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