Bonfiglioli W 75 U 30 Right Angle Gear Reducer
Product Overview
The Bonfiglioli W 75 U 30 is a right angle gear reducer intended for speed reduction and torque transmission. The model reference includes the W 75 size and a ratio of 30. The right angle design supports compact machine layouts where the motor and driven shaft are not in line. The reducer is used in conveyors, packaging equipment, material handling, and general industrial machinery.
Correct selection depends on output torque, input speed, duty cycle, mounting position, and environment. The unit should be installed by qualified personnel and according to technical documentation so that alignment, lubrication, and sealing performance are maintained.
Construction and Mechanical Design
The worm gear reducer contains a housing, worm shaft, worm wheel, bearings, and sealing elements. The worm and wheel arrangement provides speed reduction and torque increase in a compact layout. The housing supports the bearing arrangement and protects internal parts from contamination. Seals retain lubricant and reduce the entry of dust and moisture.
Installation requires a clean and rigid mounting surface. The reducer should seat without distortion. Fasteners must be tightened to the specified torque and checked after initial operation. Shaft connections should be aligned carefully.
Ratio and Load Planning
The ratio 30 defines the relationship between input speed and output speed. The designer should confirm that the output speed and torque match the driven machine. Starting torque, peak torque, and shock loads should be considered. Frequent starts, reversing, and high inertia can affect reducer life.
The reducer should not be operated beyond its rated torque or speed. If the machine process changes, the drive train should be reviewed.
Installation and Commissioning
Before installation, the reducer should be inspected for damage and the identification details checked. The shaft and mounting surfaces should be clean. Alignment with the motor and driven machine should be verified. Guards should protect rotating parts.
Commissioning should begin with a low load run where possible. Rotation direction, noise, vibration, leakage, and temperature should be checked. Fasteners should be rechecked after initial operation. The lubricant level should be confirmed according to the mounting position.
Lubrication and Thermal Conditions
Lubrication reduces friction and wear and helps remove heat from the gear mesh and bearings. The specified lubricant type and quantity must be used. The mounting position determines the correct oil level and plug arrangement. Fill, level, and drain points should remain accessible.
Operating temperature should remain within the intended range. The housing should have adequate air flow. Excessive temperature can indicate overload, incorrect lubricant, or inadequate cooling.
Operation and Monitoring
During operation, the reducer should run smoothly within the designed speed and torque range. Operators should monitor noise, vibration, temperature, and leakage. A change in running sound can indicate wear or lubrication problems.
Load changes can affect reducer life. Increased throughput, higher torque, frequent reversing, or shock loading should be reviewed against the original selection.
Protection and Maintenance
Reliability depends on correct mounting, suitable lubrication, and protection from contamination. Seals should be inspected for damage. The reducer should not be exposed to water, dust, or corrosive substances beyond its intended protection level.
Maintenance should include periodic inspection of lubricant, seals, fasteners, and housing condition. Before service, the machine must be isolated and secured against rotation.
Integration and Selection Summary
The W 75 U 30 reducer can be integrated into industrial machines that require compact right angle speed reduction and torque transmission.
Selection should confirm the model W 75 U 30, ratio 30, shaft arrangement, torque capacity, mounting position, and lubrication requirements.
