Bevel Helical Right-Angle Gearboxes

The bevel helical right-angle Gearbox series is of a modular design based on the DIN Standard, using Spiral Bevel gear cutting and grinding. They are available in double, triple or quadruple reduction ratios and can be used horizontally, vertically, up or down, both ends or turned upside down for either left- or right-hand applications, thus reducing application differences and minimising spares holding (special lubrication systems required). Backstops, Baring Drives of Cooling Fans can be fitted as required.

This standard range of Gearboxes feature a power rating up to 4,800 kW with ratios up to 400 to 1, along with thermal capacity to manage 50 degrees C ambient temperatures.

Manufacturing is carried out on the very latest CHC machining centres at the Donly factory with machine tools from Switzerland, Germany, Austria, UK and USA, guaranteeing the highest level of precision productivity available in the world. Full traceability of all raw material, manufacturing processes, inspection and assembly are documented for every Gearbox and are available on simple request. This includes chemical analysis of raw material before machining, gear cutting, full immersion gas carburizing heat treatment of gears (spie pieces), gear grinding and laboratory gear measurement.

At Donly every Gearbox assembly is “double inspected” with records kept of gear tooth contact/markings, gear backlash and bearing clearances. This is followed by load testing and full load testing as required to guarantee vibration levels, temperature rise and noise.

All Gearboxes are fitted with grease purged labyrinth seals for ultimate protection in harsh environmental conditions with central greasing point for maintenance ease. Remote condition monitoring fitted as required.

All Gearboxes carry a 3-year warranty along with a network of service centres around Australia. The experience and service capability is second to none with some 20 years of history with the world’s largest mining and minerals processing companies.


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