Geared motors: Helical-Gear Motor BG series

By Danfoss

Our most sold and most economical unit, the BG gear motor, sets new standards for reliability and economy and includes unparalleled standard features.

Features and benefits

Product range
Power rating up to 45 kW.
Main features
13 gear sizes designed for torques ranging from 20 to 16,800 Nm.

Available in the widest range of voltages.

Unparalleled mounting adaptations and a wide array of options.

CSA approved and CE marked.

Includes version with integrated frequency converter up to 7.5 kW (EtaSolution series K)

Superior protection from IP65 to IEC 529 assures you that the BG series is dust tight and hose proof, and can be used outdoors or in wet and dusty environments without the use of additional enclosures.

Full rated output is available at the output shaft of the unit.


An inverter-friendly design provides for easy integration now and a truly future proof solution.

Inch or metric-dimensioned output shafts are standard providing for easy integration into all your applications.

Total flexibility in mounting options includes foot, base, face, and flange solutions. The motor terminal box can be mounted in alternative positions rotated in 90° steps around the motor frame providing for unparalleled integration possibilities.

All position flexibility. The BG unit may be mounted in any required position, i.e. horizontal, vertical, or suspended easily meeting any requirement.

High parts interchangeability for all gear motor components benefits the customer with increased options, reduced costs, faster deliveries, and a faster maintenance "learning curve".

Complying with North American and International standards, including NEMA, IEC, CSA, & CE, the BG series allows for worldwide acceptance, a true total solution for our global customers.

Generously dimensioned ball or roller bearings, case-hardened forged and ground gears, and internally and externally reinforced gearboxes ensure a long, low-maintenance service life.

A hardened wear sleeve and spray ring at the rotor seal allow for reduced sump capacity, reliable lubrication and many years of leak-free performance.

Quiet running is a trademark of all Danfoss Bauer gear motors, so the BG series also means comfortable and healthy work environments.

A minimum level of maintenance is a prime feature of the Danfoss Bauer Gear motor program. Change of lubricant is normally required only after 10,000 operating hours.