Helical Bevel Gearmotor A series

Helical Bevel Gearmotor 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 manufactured by Bonfiglioli. Asynchronous motors both IEC and compact (BN-BE-BX/M-ME-MX), servomotors (BMD) and reluctance motors (BSR) can be coupled with the A Series.

Key benefits

– Minimized mounting space
– Wide output speed selection range
– Reduced standard backlash
– High dynamic and energy saving solution
– Wide output speed selection range
– ATEX gearbox for explosive environnements 2G/2D

Main options

Surface protection up to C5
Reinforced bearings
Reduced Backlash
Torque Arm
Fluor Elastomer oil seals
Double oil seals on input
Taconite seals

Torque range

100 … 14,000 Nm (885 … 123,910 in-lb)

Gear ratios

4.9 … 1,715


Certificate of compliance
Inspection certificate

Transmissible Mechanical Power

0.22 …150kW


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


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


drag conveyor, palletizing machines, drying and cooking line, spiral freezer, pressing line, mixing, raw material handling – feeding, washing and sorting systems, crushers, handling  – bucket elevators

Specification Helical Bevel Gearmotor A series

Type Torque Nm
A 05 100
A 10 150
A 20 250
A 30 410
A 35 600
A 41 850
A 50 1 500
A 55 2 000
A 60 2 800
A 70 5 000
A 80 8 000
A 90 14 000



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