Bonfiglioli A 10 2 UH25 P71 Gearmotor

Product Overview

The Bonfiglioli A 10 2 UH25 P71 is an industrial gearmotor that combines a BN71A4 0.75 kW motor with a gear transmission for speed reduction and torque increase. The code ME52G0580000 identifies the specific unit configuration. The gearmotor is intended for professional integration into industrial machinery where a compact motor and gearbox arrangement is required. Correct selection depends on output torque, speed, duty cycle, mounting position, and environment.

The gearmotor can be used in conveyors, processing equipment, material handling, and general machinery. Installation and maintenance should follow technical documentation so that alignment, lubrication, and electrical connections are correct. The unit forms part of a complete drive system that includes the control panel, protective devices, transmission, and driven machine. The nameplate data should be checked before connection.

Construction and Mechanical Design

The gearmotor contains an electric motor, a gear housing, gear stages, shafts, bearings, and sealing elements. The motor provides input power, and the gear stages reduce speed and increase torque. The housing supports the bearing arrangement and protects internal parts from contamination. Seals retain lubricant and reduce the entry of dust and moisture. The mounting interface and output shaft must match the machine structure and driven equipment.

Installation requires a clean, flat, and rigid mounting surface. The unit should seat without distortion. Fasteners must be tightened to the specified torque and checked after initial operation. Shaft connections should be aligned carefully. Couplings, pulleys, and other transmission elements must be fitted with suitable tools and without impact. Excessive overhung load or belt tension can affect bearing life.

Electrical Connection and Commissioning

The motor nameplate provides voltage, current, frequency, power, speed, and connection details. The supply and control system must match these values. Star or delta connection must be correct for the available voltage. Protective earth must be connected. The terminal box wiring should be secure and protected from strain. Cable glands should maintain the enclosure protection. Insulation resistance should be checked before first operation where required.

Commissioning should include a no-load run where possible. Rotation direction, noise, vibration, and current should be checked. Fasteners should be rechecked after initial operation. The lubricant level should be confirmed according to the mounting position. If the unit is controlled by an inverter, drive settings and ramps should match the motor and load. Full process load should be applied only after checks are complete.

Operation and Monitoring

During operation, the gearmotor should run smoothly within the designed speed and torque range. Operators should monitor current, temperature, noise, vibration, and leakage. Excessive current can indicate overload or mechanical binding. High temperature can result from poor cooling, overload, or incorrect supply. Leakage can lead to insufficient lubrication and should be corrected promptly. The exterior should be kept clean.

Load changes can affect gearmotor life. Increased throughput, higher torque, frequent starting, frequent reversing, or shock loading should be reviewed against the original selection. The unit should not be operated beyond its rated conditions. If the machine process changes, the drive train should be checked. Protective devices should remain active.

Protection and Reliability

Reliability depends on correct electrical protection, alignment, lubrication, and protection from contamination. Overload protection should be set according to the motor current. Short circuit protection must be provided by the installation. The unit should be protected from water, dust, and corrosive atmosphere beyond its rating. Excessive vibration and misalignment should be corrected. Fasteners should be checked periodically.

Overload protection should be coordinated with the machine design. Jam conditions, blocked loads, and sudden torque peaks can stress gears and bearings. Mechanical overload protection, torque limits, or current protection should be set according to the drive train. Service work should be performed by qualified personnel. Opening the unit without proper instructions can affect sealing and bearing adjustment.

Maintenance and Service

Maintenance should include periodic inspection of lubricant, seals, fasteners, terminals, cooling, and running conditions. The interval depends on operating hours, load, temperature, and environment. Dust and dirt should be removed from the motor frame and gear housing. Cable glands and terminal connections should be checked. Bearing noise should be monitored. Lubricant changes, if required, should use the specified type and quantity.

Before service, the machine must be isolated and secured against rotation. The unit should be allowed to cool where necessary. Cables should be labeled before disconnection. Replacement of seals or bearings requires proper tools and clean conditions. After service, alignment, electrical connections, and lubricant level should be checked. The unit should be run briefly before return to full duty.

Integration and Selection Summary

The A 10 2 UH25 P71 gearmotor can be integrated into industrial machines that require a compact motor and gear drive arrangement. The final application determines protection, mounting position, control method, and maintenance access. The unit should be selected as part of the complete drive train, including control panel, protective devices, transmission, and driven machine.

Selection should confirm the model A 10 2 UH25 P71, BN71A4 motor, 0.75 kW rating, code ME52G0580000, ratio, torque capacity, mounting position, and lubrication requirements. The designer should verify compatibility with the supply and driven machine. Documentation should be reviewed before installation.