BONFIGLIOLI W63 U P80 B5 2G20012741 W63 1/64 Gearbox
The BONFIGLIOLI W63 U P80 B5 gearbox, identified by code 2G20012741 and additional reference 614.200.465, is a W63 worm gear reducer configured with a P80 B5 motor flange and a 1/64 ratio. The W series is known for robust cast iron construction and smooth worm gear operation. The P80 B5 interface allows a standard IEC 80 frame motor with a B5 flange to be mounted directly to the reducer. The 1/64 ratio provides a high reduction suitable for applications that require low output speed and increased torque.
Product Overview
The W63 size is a mid sized worm gearbox that offers a practical balance between torque capacity and compact dimensions. Worm gearboxes achieve high reduction ratios in a single stage by using a hardened worm shaft that drives a bronze worm wheel. This construction provides smooth motion, low noise, and a self locking tendency under many load conditions. The U code defines the shaft and mounting arrangement of the specific build.
The gearbox housing supports the worm shaft and wheel with sufficient rigidity for stable gear mesh. Bearings support the radial and axial forces generated by the worm gear action. Seals protect the lubricant and bearings from dust and moisture. Lubrication is contained within the housing and distributed to the gear mesh and bearings during operation.
Construction and Design
The worm shaft is hardened and ground for smooth contact and reduced wear. The bronze worm wheel provides favorable friction characteristics and contributes to quiet operation. The housing maintains correct alignment between the worm and wheel under load. The P80 B5 interface is machined for precise motor mounting. The cast iron housing supports heat dissipation and structural strength.
The output shaft is machined to accept couplings, pulleys, sprockets, or other driven components. Proper lubrication and clean exterior surfaces help maintain stable operating temperatures. The unit should be selected with an appropriate service factor for the application.
Performance Characteristics
The 1/64 ratio determines the output speed by dividing the motor speed by 64. The output torque depends on the motor power, gearbox efficiency, and service factor. Worm gearboxes provide gradual torque transfer, which helps reduce shock in driven equipment. The smooth engagement of the worm and wheel also contributes to quiet operation.
Worm gearboxes have a self locking tendency under many load conditions. This can be useful when the load must remain in position after the motor stops. However, self locking is not guaranteed in all conditions and should be verified for the specific application. Efficiency depends on the ratio, load, speed, and lubrication.
Applications
The Bonfiglioli W63 U P80 B5 reducer is suitable for belt conveyors, screw conveyors, mixers, agitators, packaging machines, and general industrial drives. The 1/64 ratio is useful in applications that require high speed reduction and increased torque. The right angle layout allows the motor to be positioned at 90 degrees to the driven shaft, which can save space in machine frames.
The P80 B5 interface supports direct motor mounting, which simplifies alignment and reduces the number of separate transmission components. The gearbox can be paired with a compatible motor for a complete drive assembly. When variable speed operation is required, the motor and gearbox should be evaluated together.
Installation Guidelines
Installation should begin with a check of the nameplate data and a visual inspection of the gearbox. The unit should be mounted on a rigid base that can withstand the torque reaction. Mounting bolts should be tightened to the recommended torque. The motor should be aligned with the P80 B5 interface so that the motor shaft engages the gearbox input correctly. The output shaft should be aligned with the driven equipment to avoid excessive loads on bearings and seals.
After installation, the gearbox should be checked for smooth rotation and correct oil level. A short run without load helps confirm that the assembly operates correctly. Any unusual noise, vibration, or temperature rise should be investigated before full service.
Maintenance Recommendations
Regular maintenance supports reliable performance and long service life. Oil level and oil condition should be checked at recommended intervals. The first oil change should be performed after the initial running in period, and later changes should follow the schedule for the operating conditions. Seals and bearings should be inspected periodically. Leakage, abnormal noise, or vibration should be addressed promptly.
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.
Selection Considerations
When selecting the W63 U P80 B5 gearbox, engineers should confirm the required output torque, output speed, duty cycle, and environmental conditions. The 1/64 ratio and motor speed determine the output speed. The available torque depends on motor power and gearbox efficiency. A service factor should be applied for starting loads, shock loads, and continuous operation. The P80 B5 interface must match the motor.
The gearbox mounting position should provide adequate support and allow correct lubrication. The output shaft and mounting features should match the driven equipment. For applications that rely on holding or self locking, the load conditions should be evaluated carefully.
Conclusion
The BONFIGLIOLI W63 U P80 B5 2G20012741 W63 1/64 gearbox offers a robust reduction solution with a P80 B5 motor interface and smooth worm gear operation. Its cast iron construction supports quiet torque transmission and reliable performance in conveyors, mixers, and industrial machinery. With correct installation and maintenance, the gearbox provides dependable operation and long service life.
