Bonfiglioli A302 UH35 P90 2D3D Bevel Helical Gearbox

Product Overview

The Bonfiglioli A302 UH35 P90 2D3D is an industrial bevel helical gearbox intended for right angle speed reduction and torque transmission. The model reference identifies the gear size, ratio class, motor interface, and mounting arrangement. The bevel helical design combines the right angle capability of bevel gears with the smooth running and efficiency of helical stages. The unit is used where a compact right angle drive is required in a demanding machine layout.

The gearbox is suitable for conveyors, mixers, processing equipment, material handling systems, and general industrial machinery. Correct selection depends on output torque, input speed, duty cycle, mounting position, and environment. The gearbox 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 gearbox contains a rigid housing, bevel gear stage, helical gear stages, shafts, bearings, and sealing elements. The bevel stage changes the direction of power flow, while the helical stages provide further speed reduction with smooth tooth engagement. 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 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 and transmission elements must be fitted with suitable tools and without impact.

Motor Interface and Configuration

The P90 interface defines motor connection details. The UH35 configuration identifies the gear arrangement and ratio class. The motor flange, shaft, and pilot must match the gearbox input. Incorrect adaptation can cause vibration, misalignment, or damage. The motor should be fitted without force. Coupling and clamping elements should be tightened according to instructions.

The designer should confirm that the output speed and torque match the driven machine. Starting torque, peak torque, and shock loads should be considered. The gearbox 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 gearbox 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. The installation should provide access for lubrication checks, inspection, and maintenance.

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. If the gearbox is controlled by an inverter, ramps should be set to avoid mechanical shock.

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 after installation.

Operating temperature should remain within the intended range. The housing should have adequate air flow. In enclosed spaces, heat from the motor and other equipment must be considered. Excessive temperature can indicate overload, incorrect lubricant, or inadequate cooling. Leakage should be corrected promptly.

Operation and Monitoring

During operation, the gearbox 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, misalignment, or lubrication problems. Vibration can result from coupling issues, loose fasteners, or bearing damage.

Load changes can affect gearbox life. Increased throughput, higher torque, frequent reversing, or shock loading should be reviewed against the original selection. The unit should not be operated beyond its rated conditions. Protective devices should remain active.

Protection and Maintenance

Reliability depends on correct mounting, suitable lubrication, and protection from contamination. Seals should be inspected for damage. Breathing devices, where fitted, should be kept clean. The gearbox 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. The interval depends on operating hours, load, temperature, and environment. Lubricant changes, if required, should use the specified type and quantity. Before service, the machine must be isolated and secured against rotation.

Integration and Selection Summary

The A302 UH35 P90 2D3D gearbox can be integrated into industrial machines that require right angle bevel helical speed reduction and torque transmission. The final application determines protection, mounting position, and maintenance access.

Selection should confirm the model A302 UH35 P90 2D3D, ratio, motor interface, shaft arrangement, torque capacity, mounting position, and lubrication requirements. The designer should verify compatibility with the motor and driven machine. Documentation should be reviewed before installation.