BONFIGLIOLI MP105 MP105.2.18.15.14.40.70.90 18:1 Planetary Gearbox
The BONFIGLIOLI MP105 MP105.2.18.15.14.40.70.90 planetary gearbox is a two stage reducer configured with an 18:1 ratio. The model codes define the MP105 size, two stage design, ratio, shaft, flange, and mounting details. The MP105 belongs to the Bonfiglioli MP series of planetary gearboxes, which are designed for applications that require high torque density, torsional rigidity, and precise motion control in a compact package. This gearbox is suitable for automation, material handling, and positioning equipment.
Product Overview
Planetary gearboxes use multiple planet gears that rotate around a central sun gear inside a ring gear. Because the load is shared among several planet gears, planetary reducers can transmit high torque in a small envelope. The MP105 is a mid sized unit within the Bonfiglioli MP range. The two stage configuration allows the gearbox to achieve an 18:1 ratio while maintaining high efficiency and smooth operation.
The model codes describe the specific build. The 15, 14, 40, 70, and 90 codes relate to shaft, flange, mounting, and option details. Because these codes define critical interfaces, the nameplate and dimensional drawing should be consulted for exact installation data. The compact design makes the gearbox suitable for integration into automated machinery and positioning systems.
Construction and Design
The MP105 housing is designed for high rigidity so that the gear mesh remains stable under load. The planet gears, sun gear, and ring gear are manufactured to precise tolerances to provide smooth rotation and low backlash characteristics. Bearings support the input and output shafts and the planet carrier. Lubrication is contained within the housing and distributed to the gears and bearings during operation. Seals protect the internal components from dust and moisture.
The output interface identified by the model codes determines how the gearbox connects to the driven machine. The input interface is designed to accept a matching motor or drive component. The mounting options allow the gearbox to be installed in different orientations to suit the machine layout. The compact design reduces the inertia of the drive system, which can improve dynamic response in automated machinery.
Performance Characteristics
The 18:1 ratio of the MP105 two stage gearbox provides a moderate speed reduction with strong torque multiplication. The output speed is calculated by dividing the input speed by eighteen. The torque capacity depends on the gearbox size, the number of stages, the duty cycle, and the service factor. Planetary gearboxes are known for high torsional rigidity, which supports accurate positioning when the unit is used with a servo motor or a precision control system.
Efficiency is generally high in planetary gearboxes because the load is distributed across multiple gear contacts. Smooth operation and low backlash characteristics help maintain positioning accuracy. Thermal capacity should be checked for continuous duty or high ambient temperatures. The gearbox should be selected with an appropriate service factor to account for shock loads, starting loads, and reversing duty.
Applications
The Bonfiglioli MP105 planetary gearbox is suitable for automated assembly systems, material handling equipment, packaging machinery, robotics, positioning tables, and general industrial drives. The 18:1 ratio is useful in applications that require controlled speed reduction and high torque output. The compact size allows the gearbox to fit into machine designs where space is limited.
The configuration codes adapt the gearbox to specific motor and mounting requirements. This flexibility makes the MP105 useful in machine builders that need a precise reduction solution with a defined interface. The gearbox can be paired with servo motors or standard motors depending on the application. When used in positioning systems, the torsional rigidity and low backlash characteristics help maintain accuracy and repeatability.
Installation Guidelines
Installation should begin with a check of the nameplate data and the dimensional drawing. The gearbox should be mounted on a rigid base that can withstand the torque reaction. The input motor should be aligned with the gearbox input interface so that the shaft connection engages correctly. Couplings and shaft connections should be fitted according to the manufacturer recommendations. Mounting bolts should be tightened to the recommended torque.
The output shaft should be aligned with the driven equipment to avoid excessive radial and axial loads. Misalignment can cause premature bearing wear, vibration, and positioning error. After installation, the gearbox should be checked for smooth rotation and correct lubrication. A short run without load helps confirm that the assembly operates correctly.
Maintenance Recommendations
Regular maintenance supports reliable performance and long service life. Lubrication should be checked and replenished according to the recommended schedule. The condition of the lubricant should be inspected for contamination or breakdown. Seals and bearings should be checked periodically. Leakage, abnormal noise, or vibration should be addressed promptly to prevent further damage.
The exterior of the gearbox should be kept clean to support heat dissipation. Adequate airflow around the housing helps maintain stable temperatures. In dusty or humid environments, additional protection may be needed. Maintenance records help identify trends and support planned servicing. Following a consistent maintenance schedule reduces the risk of unexpected downtime.
Selection Considerations
When selecting the MP105 18:1 gearbox, engineers should confirm the required output torque, output speed, duty cycle, and environmental conditions. The 18:1 ratio and input speed determine the output speed. The available torque depends on the motor power and gearbox efficiency. A service factor should be applied for starting loads, shock loads, and continuous operation. The configuration codes should be checked against the motor and machine interfaces.
The output interface, mounting options, and shaft details identified by the model codes must match the application. For positioning systems, backlash and torsional rigidity should be evaluated against the accuracy requirements. Correct selection and installation help ensure smooth operation, stable thermal behavior, and long service life.
Conclusion
The Bonfiglioli MP105 MP105.2.18.15.14.40.70.90 planetary gearbox offers a compact two stage reduction solution with an 18:1 ratio and configurable interfaces. Its high torque density, torsional rigidity, and precise motion characteristics make it suitable for automation, material handling, and positioning equipment. With correct installation and maintenance, the gearbox provides reliable performance and long service life.
