98 Series - High Torque Gearbox
ATLANTA HT-high-torque worm gear units have been specially developed for use with the latest three-phase and DC servo-motors. Like all other components in this catalogue, they are usually available ex stock or, at least, within a very short time.
The following are typical features of our HT-high-torque gear units:
• low-clearance gearing (back lash < 1'), adjustable
• up to 150 % higher loading values
• casing of light metal for optimal heat dissipation
• robust bevel roller bearings for the output drive hollow shaft in “O” arrangement permitting greater additional forces.
Centre distances, gear ratios and tooth systems have been chosen in accordance with DIN 3975/76. The tooth shape was optimised so as to permit the adjustment of the clearance simply by changing the centre distance by means of eccentric flanges.
The use of ground, right-hand worms, a worm gear of special worm-gear bronze and dip-feed lubrication (synthetic special oil) ensures a high degree of efficiency and also smooth running in both directions and a long service life. The fully machined casing with its many fixing bores and tapped holes permits mounting in any position.
The demand for an absolutely positive, and largely torsionfree connection between gear unit and output shaft, as it is especially important for intermittent operation, is fulfilled by our new gear-unit version with interface according to DIN EN ISO 9409-1-A as well as by our traditional version with shrinkplate coupling of the output shaft.
The drive, i.e. the connection with the driving motor, is achieved with a special clutch. Its internal gearing, together with the barrelled profile of the driving shaft of our worm gear unit ensures transmission of the power with no free play. The use of annular spring elements firmly fixed to the motor shaft serves the same purpose.
For the output drive you can choose from quite a number of output drive shafts with straight and helical tooth systems and various numbers of teeth. Apart from toothed pinion shafts there is a multitude of gearwheels with different numbers of teeth from our gearwheel program which can be combined and used together with suitable special output drive shafts.
In addition there is a large choice of gearwheels with helical tooth system for gear units with interface according to EN ISO 9409-1-A.
