Technical Analysis: Bonfiglioli C 31 3 UFB Helical Gearbox
The Bonfiglioli C 31 3 UFB 186,0 P71 B5 is a triple-reduction helical in-line gear unit designed for high-efficiency torque transmission. Part of the C Series, this unit is celebrated for its robust design and coaxial shaft arrangement. With a gear ratio of 186.0:1, it is engineered for applications requiring high output torque and low rotational speeds, such as heavy-duty mixers and secondary conveyors.
Key Characteristics and Design
The C 31 3 features three stages of high-precision helical gearing, which significantly reduces internal friction and noise compared to other gear types. The UFB designation indicates a universal mounting configuration with a specific output flange. Coupled with a P71 B5 IEC flange, this gearbox is ready for direct integration with 0.37kW motors, ensuring a compact and rigid drive assembly.
Detailed Specifications
- Part Number: C 31 3 UFB 186,0 P71 B5.
- Reduction Stages: 3 stages.
- Gear Ratio (i): 186.0.
- Input Flange: P71 B5 (IEC standard).
- Housing Material: High-strength cast iron.
- Output Configuration: Solid shaft with UFB flange.
- Mechanical Efficiency: Approx. 92% – 94%.
Industrial Reliability
Bonfiglioli C series gearboxes utilize hardened and ground gears to withstand high overhung and axial loads. The cast iron housing provides excellent vibration damping, making it suitable for heavy industrial environments. The triple reduction stage allows for precise motion control in automated systems where high torque density is a prerequisite.
| Feature | Specification |
| Lubrication | Mineral or Synthetic (Ref. Mounting) |
| Sealing System | Double lip NBR seals |
| Torque Rating | Ref. Size 31 Catalog |
Mounting Insights
The UFB mounting execution allows for flange mounting while providing the structural benefits of the universal housing. It is critical to ensure the unit is filled with the correct lubricant volume corresponding to the final mounting orientation to prevent gear wear.
¿Necesita más referencias de esta marca? Explore nuestro catálogo completo de Bonfiglioli aquí.
