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inDUSTRiAl GEAR UniTS SUiT hEAvy-DUTy lOGiSTiCS REqUiREmEnTS PRODUCTS GEARS & GEARBOXES
With its wide portfolio of MAXXDRIVE industrial gear units, NORD DRIVESYSTEMS claims to offer powerful and robust drive solutions for all requirements of heavy-duty logistics. New to the NORD industrial gear unit portfolio,
this is precisely matched to the requirements of lifting equipment. According to the company, it offers a 35% increase in centre distance and a 60% reduction in drive weight due to optimal use of installation space. The parallel arrangement of the gear stages
and the thus increased centre distance were specially developed for the usual layout of lifting gear drives for cranes, where gear unit, motor and rope drum are arranged in a U-shape. The increased surface area of the XD also ensures an optimum heat dissipation.
MAXXDRIVE industrial gear units are
characterised by quiet operation and a long service life. With very high output torques of up to 282,000Nm, they are ideally suitable for demanding applications in lifting equipment, belt conveyors and bucket elevators. Of further benefit, precise gear geometries in
the industrial gear units ensure excellent load capacity, long service life and low noise. High- quality, low-friction bearings and the torsionally rigid one-piece UNICASE housing guarantee maximum robustness. The cuboid housing also allows greatest flexibility and enables six installation positions. The MAXXDRIVE industrial gear units are
available in eleven sizes and in parallel or right- angle gear unit versions.
The XT series was designed for particularly
high powers without special cooling requirements. With powers of up to 7,500kW, it is recommended for applications in bulk goods conveying, the company explains. In addition, the industrial gear units use
standard components to enable short-term availability. They can also be configured to the customer’s individual requirements. “For all areas of heavy duty logistics, NORD
DRIVESYSTEMS provides powerful and robust drive solutions – from conveying to lifting, from general goods to bulk materials”, said Jörg Niermann, head of marketing at NORD DRIVESYSTEMS.
NORD DRIVESYSTEMS
www.nord.com
compact and robust cycloidal gears for robots
Compact robot gears that offer high performance, durability and reliability, are available from Nabtesco. According to the company, its cycloidal gears meet the robust, precise and dynamic features required by heavy-duty robots. The company offers an extensive range of
products for high-performance gear systems with torque ratings of up to 28,000Nm. The heavy-duty gears are characterised by extreme precision, maximum robustness and a compact design, and can easily handle the heaviest loads. In cycloidal gears, power transmission is
achieved by cams and rollers, ensuring continuous contact and even distribution of forces within the gearbox, which produces high rigidity. As a result, it is possible to transmit very high torques with maximum precision (hysteresis loss < 1 arc.min). The increase in backlash remains negligible throughout the entire life cycle. Furthermore, their special design achieves
excellent behaviour with respect to dynamics, load capacity and compactness. Even high reduction ratios can be achieved with only two or three gear stages. The integrated main bearings absorb both axial and radial loads and bending moments, and provide for high moment rigidity and resistance to
shock loads (up to 500 % of the rated torque). Furthermore, the integrated main bearings are
said to allow Nabtesco gears to withstand 250% higher bending moments than conventional planetary gears of a comparable size. This eliminates the need for additional external bearings, which allows a more compact robot design with maximum precision, dynamics, load capacity and rigidity. With a torque rating of
28,000Nm the RV-2800N is said to be the largest and most robust precision gearbox in the world. The XXL gearbox features an optimal combination of performance, torsional rigidity and compactness, which opens up entirely new applications for robots that in the past were possible only with hydraulic or spindle solutions. This is a benefit, for example, when moving large panes of glass, sheet steel, machine
components or even entire motor vehicles. In such applications, heavy-duty robots also benefit from good load conditions as a result of the reduced weight and lower inertia.
Nabtesco
www.nabtesco.de/en
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