ATLANTA Standard Worm Gear Units have been designed for use with three-phase motors and servo motors. Due to the great number of attachment and threaded holes provided it can be directly installed in any desired mounting position without any preparatory work being required. The basic gear with solid input shaft or with hollow input shaft can be mounted in 24 different designs, see unit mounting possibilities of Standard Worm Gear Units.
Technical Datas:
6 sizes: 40, 50, 63, 80, 100 and 125
10 ratios: 6,75; 9; 12; 14; 19; 29; 39; 52; 62 und 82:1
Output torque: from 19 to 1100 Nm
ATEX design available
Self-locking property of Worm Gear Units
A precondition for the self-locking quality of gear units is a small tooth lead angle of the worm and thus an efficiency of η ≤ 0,5 with worm driving. Consequently self-locking gear units are generally uneconomical when high performances and long operating times are required. A worm gear unit is considered self-locking at standstill if, with worm wheel driving, starting from standstill is impossible. This is the case with ATLANTA wheel sets and gear units when the lead angle is <5°. A worm gear unit is considered self-locking from the running condition if the gear unit comes to a standstill whilst being backdriven. This is only possible with high gear ratios and very low speeds. Shocks and vibrations can neutralize the self-locking capacity! Therefore a self-locking tooth system cannot replace a brake or reverse-stroke locking mechanism. In order to avoid overstressing of the worm gear drive due to the very high kinetic energy involved, you should furthermore allow for a certain running-down time after stopping the input.
Type : worm
Shaft orientation : right angle
Torque : 1 - 2 kNm
Applications : for servo motors
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