Bonfiglioli BN80B4 623136 Geared Motor

The Bonfiglioli BN80B4 623136 geared motor is an integrated drive unit that pairs a three phase electric motor with a precision gear reducer. The BN80B4 designation identifies an IEC 80 frame motor with a four pole configuration, which provides a good balance between speed and torque for many industrial applications. The part number 623136 refers to the specific configuration of the motor and gearbox assembly. This unit is designed for dependable continuous operation in conveyors, mixers, packaging machinery, and other general industrial equipment.

Product Overview

The BN series from Bonfiglioli is a well established range of three phase asynchronous motors that are widely used in industrial drive systems. The BN80B4 model uses the IEC 80 frame size, which is a compact and versatile frame that fits many standard mounting arrangements. The four pole design produces a nominal speed of approximately 1400 rpm at 50 Hz, and the integrated gearbox reduces this speed to the level required by the driven machine.

The complete geared motor assembly is matched at the factory to ensure proper alignment between the motor shaft and the gearbox input. This integrated approach simplifies installation and reduces the risk of misalignment that can occur when separate components are assembled in the field. The result is a compact and reliable drive package that is easy to specify and install.

Key Features

• IEC 80 frame three phase motor for standard mounting compatibility

• Four pole configuration for balanced speed and torque characteristics

• Integrated gear reducer for compact installation and reduced footprint

• Factory matched motor and gearbox for proper alignment

• Robust construction for continuous industrial duty

• Quiet operation suitable for indoor and enclosed environments

• Standard electrical connections for straightforward wiring

• Reliable performance in conveyors, mixers, and packaging equipment

Technical Specifications

• Model: BN80B4

• Part number: 623136

• Frame size: IEC 80

• Pole configuration: Four pole

• Motor type: Three phase asynchronous motor

• Nominal speed: Approximately 1400 rpm at 50 Hz before reduction

• Configuration: Motor with integrated gear reducer

• Mounting: Standard IEC frame mounting

• Duty: Continuous industrial duty

• Cooling: Fan cooled

Performance and Efficiency

The BN80B4 motor is designed to deliver stable torque with good efficiency across its operating range. The four pole configuration is a common choice for general industrial drives because it offers a practical balance between speed and torque without requiring very large frame sizes. The integrated gearbox allows the output speed to be reduced while the torque is increased, which is essential for driving heavy loads such as conveyors and mixers.

The factory matched assembly of the BN80B4 623136 geared motor helps preserve efficiency because the motor and gearbox are aligned to minimize losses. The gearbox itself is designed with high quality bearings and gears to ensure smooth power transmission and long service life. Together, the motor and gearbox provide a reliable drive solution that can operate continuously in demanding environments.

Applications

The Bonfiglioli BN80B4 623136 geared motor is suitable for a wide range of industrial applications. It is commonly used in belt conveyors, screw conveyors, mixers, agitators, packaging machines, labeling equipment, and material handling systems. The compact IEC 80 frame makes it easy to integrate into machines where space is limited, while the geared output provides the torque needed for demanding loads.

Because the BN series motors are designed to standard IEC dimensions, this geared motor can be used as a replacement or upgrade for many existing drive systems. The standard electrical configuration simplifies wiring and control integration. The unit can also be paired with variable frequency drives when adjustable speed operation is required, provided that the motor and gearbox are suitably rated for the intended speed range.

Installation Guidelines

Installation of the BN80B4 623136 geared motor should begin with a careful check of the nameplate data and a visual inspection of the unit. The motor should be mounted on a rigid base that can absorb the torque reaction during operation. The gearbox output must be aligned with the driven shaft to prevent excessive radial loads and premature bearing wear. Couplings should be fitted according to the manufacturer recommendations and checked for proper alignment.

Electrical connections should be made by qualified personnel following local regulations. The motor should be wired for the correct supply voltage and the direction of rotation should be verified before connecting the load. Proper grounding is essential for safe operation. After installation, a brief run in period without load helps confirm that the assembly operates smoothly and without abnormal noise or vibration.

Maintenance Recommendations

Regular maintenance helps ensure the long term reliability of the BN80B4 623136 geared motor. The motor cooling fan and fan cover should be kept clean to maintain adequate airflow. The gearbox oil level should be checked periodically and oil should be changed according to the recommended schedule. Bearing noise and vibration should be monitored, and any abnormal signs should be investigated promptly to prevent unexpected failures.

Electrical connections should be inspected for tightness and signs of overheating. The motor insulation resistance can be measured periodically to detect deterioration. In environments with dust or moisture, additional protection measures may be needed to preserve the service life of the motor and gearbox. Following a consistent maintenance schedule helps avoid downtime and extends the operating life of the unit.

Selection Considerations

When selecting the BN80B4 623136 geared motor, engineers should confirm that the output torque and speed match the requirements of the driven equipment. The gearbox reduction ratio determines the final output speed, and the available torque must include an appropriate service factor for the application. The motor voltage and frequency should match the available power supply, and the control method should be chosen based on whether fixed speed or variable speed operation is needed.

The IEC 80 frame size is compact but still provides enough power for many light and medium duty applications. For applications with high starting torque or frequent reversing, the motor and gearbox should be sized with additional margin to ensure reliable long term operation. The standard mounting dimensions make it easy to integrate the unit into new and existing machines.

Conclusion

The Bonfiglioli BN80B4 623136 geared motor offers a reliable and compact drive solution that combines an IEC 80 frame three phase motor with a matched gear reducer. Its four pole configuration, robust construction, and factory aligned assembly make it suitable for conveyors, mixers, packaging machinery, and general industrial equipment. With proper installation and maintenance, this geared motor provides stable performance and long service life.