HB Series – Helical & Helical-Bevel Gear Units

Versatile Design for Every Application
Engineered to adapt to different layouts and operational needs, the H Series offers a range of configuration options to suit your exact requirements:
- Mounting Options – Available in horizontal or vertical installation
- Output Variants – Solid or hollow output shafts, single or double extension
- Torque Range – 26 sizes, with torques ranging from 3,100 Nm to 1,400,000 Nm
- Ratio Range – i = 1.25 to 450, with 2 to 4 gear stages
Built for Performance and Longevity
Every component of the HB Series is designed for durability, efficiency, and ease of maintenance, ensuring long service life and minimal downtime:
- Case-hardened and precision-machined helical gears for low noise operation and maximum gear lifetime
- Heavy-duty spherical and taper roller bearings utilised to handle high radial and axial loads
- Close-grain cast iron housings for superior vibration absorption and smooth operation
- Optional fan or water cooling for higher torque at elevated input speeds

Proven in Multiple Industries
From heavy bulk material handling to precision-driven machinery, the HB Series adapts to diverse industries where performance and reliability are non-negotiable. Its flexibility and durability make it a trusted choice for both OEMs and plant operators seeking an all-round gear solution.
Our gears are trusted industry-wide in:
- Mining & Cement: conveyor systems, crushers
- Cranes & Lifting Equipment: hoists, container cranes
- Power Generation: cooling towers, water turbines
- Plastics & Rubber: extruders, mixers
- Water & Wastewater: aerators, agitators
- Steel Industry: rolling mills, material handling drives



