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A Series
Helical Bevel Gearmotors & Units
The A Series combines high efficiency and reliability, low maintenance costs and a wide torque range. The right angle layout between INPUT and OUTPUT makes the A Series particularly compact. The gear set combination makes this right-angle product the most efficient and durable in Bonfiglioli's light- and medium-duty portfolio. The A Series can be completed with a wide range of electric motors entirely manufactured by Bonfiglioli. Asynchronous motors both IEC and compact (B-BE-BX/M-ME-MX), servomotors (BMD) and reluctance motors (BSR) can be coupled with the A Series.


Torque Range

Torque (Nm)
  • A 05
  • A 10
  • A 20
  • A 30
  • A 35
  • A 41
  • A 50
  • A 55
  • A 60
  • A 70
  • A 80
  • A 90
  • Key benefits

    Minimized mounting space
    Reduced installation space and wide output speed selection range
    Reduced standard backlash
    Highly dynamic, energy-saving solution
    Wide output speed selection range
    Gearboxes can operate safely in explosive environments
  • Main options

    Surface protection up to C5
    Reinforced bearings
    Reduced backlash
    Torque arm
    Fluoroelastomer oil seals
    Double oil seasonal input
    Taconite seals
  • Torque range

    100 ... 14,000 Nm
  • Gear ratios

    4.9 ... 1,715
  • Certifications

    Certificate of compliance
    Inspection certificate
  • Transmissible Mechanical Power

    0.22 ...150kW
  • Output

    Feet and shaft mount with two bore options per size
    Solid shaft, splined hollow shaft, hollow shaft with shrink discs
  • Motors

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

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

Key features

Right-angle input-output

Compact motor coupling

Forced gears-shafts coupling

Servomotor coupling

Wide ratio range (4 stages)

Atex - gearbox for explosive environments 2G/2D

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Related Products

Download Documents

Product Range Catalogue- Discrete Manufacturing & Process Industries

Product Range Catalogue- Discrete Manufacturing & Process Industries

Download technical documentation

Register now to download the following documents
  • Product Catalogue –Industrial Gearmotors-C-A-F-S
  • Product Catalogue –Industrial Gearmotors-C-A-F-S-IE2-IE3
  • Product Catalogue –Industrial Gearmotors-C-A-F-S-NEMA
  • Product Catalogue –Industrial Gearmotors-C-A-F-NEMA
  • Selection Of Gearboxes- Industrial Gearmotors-C-A-F-S-VF-W
  • Spare Parts List_ A

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