gearless traction

gearless traction

[¦gir·ləs ′trak·shən]
(mechanical engineering)
Direct drive, without reduction gears.
References in periodicals archive ?
1 x passenger lift - with rope drive / frequency-controlled, gearless traction sheave drive, - handicapped accessible (also visually impaired and hearing impaired).
GAL Manufacturing supplies electromechanical components used on elevator systems, including door operators and associated door equipment, geared and gearless traction machines, universally compatible microprocessor controllers, safety components, signal fixtures, push button panels and structural assemblies.
To keep up with this trend, Toshiba has introduced green elevators, with features such as high-performance gearless traction, roller-guide shoes that eliminate the requirement for lubrication, maintenance-free buffers, and light-emitting diode (LED) illumination.
The gearless traction machine with the permanent magnet motor is packed with cutting-edge technology, such as the unique stator-core structure and built-in double brakes.
Many of them are gearless traction electric elevators, designed to move as quickly as possible.
Then came electricity and gearless traction, giving rise to the next wave of high-rise, typified by the Woolworth and the Singer buildings.
Permanent magnetic gearless traction machine reduces power consumption by 20% compared to worm-geared traction machine with inverter control
Elevator load capacity 1 000 kg / 13 persons driving speed v = 1m / s drive gearless traction sheave drive as a synchronous motor with frequency control, designed for 180 rides per hour mains connection 3x400vac / n / pe, five-wire pit design in-situ concrete shaft width 1 600 mm shaft depth 2510 mm shaft pit (underpass) 1 050 mm shaft head (crossing) 2 690 mm delivery height 17.
1903 The gearless traction electric elevator is introduced.
In response to a growing demand for elevators with reduced environmental impact, the NEXIEZ series features a permanent magnetic (PM) gearless traction machine that hoists the ropes using PM motors.
Delivery, assembly and commissioning of a lift system with the following specifications: Load capacity: 1,150 kg / 15 persons Driving speed: v = 1 m / s Drive Gearless traction drive as synchronous motor with frequency control, designed for 180 rides per hour.
Part of the solution was to add three new gearless traction elevators to the existing 10 which served the guest rooms.