Clean drive solutions for food technology, conveyors, and beyond: Lightweight, hygienic helical bevel gear units

Illustration: NORD’s hygienic helical bevel gear units are available as open or closed frame versions – right: combined with a smooth-surface motor

For hygienically demanding applications, NORD DRIVESYSTEMS supplies aluminum two-stage helical bevel gear units in five sizes with a maximum torque of 660 Nm that are especially easy to clean. The washdown design is based on smooth inclined surfaces, transitions with large radii without dead spaces, and requires no assembly covers.

Cleaning liquids wash off easily and completely from the surfaces, which also remain considerably cooler than those of conventional drives thanks to the special construction. The design is optimized, amongst others, for use in the food industry and complies with international guidelines and standards such as EHEDG, ANSI / BISSC, and ANSI / NSF. If required, the gear units can be fitted with double shaft seals. They can be ordered as open or closed frame versions with hollow or solid shafts. Designed according to the proven UNICASE principle, the housings are very torsion-resistant and withstand high mechanical stress. With the optional NSD tupH surface treatment, they become extremely resistant to corrosion as well as acids and alkaline solutions. NORD’s NSD tupH sealed surface conversion system is not a coating, which means that no layers can peel. Instead, the process transforms surfaces with up to seven times the hardness of the base aluminum material. Thereby, the housings acquire robustness and durability qualities that are similar to stainless steel versions, while remaining much lighter and more economic. In addition to food industry processes, the gear units are also ideally suited for conveyor systems and hoists, especially in applications where geared motors have to be moved and their light weight becomes essential. All gear units can be combined with suitable smooth-surface motors from NORD or other manufacturers.

Company background
NORD DRIVESYSTEMS develops, produces and sells drive technologies with around 2,800 employees, and is one of the international leaders in the industry. In addition to standard drives, NORD supplies application-specific concepts and solutions, even for special applications, for example with energy-saving drives or explosion-protected systems. The annual sales in the 2011 fiscal year amounted to about 412 million Euro. The company founded in 1965 now has over 35 subsidiaries worldwide. The closely meshed sales and service network ensures optimum availability for short delivery times and customer-oriented services. NORD produces a wide variety of drive units for torques from 10 to 200,000 Nm, electric motors with powers from 0.12 kW to 200 kW as well as the necessary power electronics in the form of frequency inverters and servo controllers. Inverter solutions are available for classical installations in the switch cabinet and for decentralised and fully integrated drive units.

For more information
Web: www.nord.com