GEARBOXES

Although the primary function of a Geareducer is to reduce the speed of the driver (usually an electric motor) to a speed which is conducive to good fan performance, it must satisfy other criteria as well. For example, it must provide primary support for the fan — withstand the shock loads imposed at start-up and during subsequent speed changes—anchor the fan against lateral movement in response to rotational forces—and contribute as little as possible to power transmission losses as well as the generation of noise.

The "VD" Series right angle gear drives for cooling towers from SEQUANA are designed as direct replacements for the Paharpur® Cooling Tower line of right angle drives.

Since there are no differences in the critical mounting dimensions, the "VD" Series will make gear drive replacements easy. Gear housing foot patterns are identical, eliminating expensive tower gear drive support modifications.

The input shaft diameters and keyways are the same, so existing couplings and drive shafts do not have to be replaced. All service ports are also easily accessible.

- Fan shafts are made of high strength steel as per relevant IS standards and are machine & heat treated for greater yield strength.
- Bearings are heavy-duty taper roller type.

We match the drive to the application and offer proven reliability under the most severe conditions.

• • Carburised and ground gearing of both bevel and helical gears excels in strength, torque capacity, surface durability and low noise performance.
• • Large overhung load capacity of the gear unit.
• • A dedicated bearing confi guration meets the application requirements.
• • Bearings and shafts are dimensioned to go the distance, ensuring long bearing life under heavy loads.
• • Continuous oil circulation through the bearings ensures a long, trouble-free working life for the gear unit.