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Description
Slewing Drive
This wide range includes gearboxes for slew drive (http://www.slew-bearing.com/SLEW-DRIVE-pl550823.html) of excavators, all kinds of mobile cranes, tower cranes of construction sites, harbour and deck cranes, aerial work-platforms and solar-trackers (large photo voltaic panels and wind power equipment). A large selection of reduction ratios are available for all sizes, along with built-in negative brakes and adaptors for all the most common hydraulic and electric motors.
The high capacity bearings on the output shaft are designed to take the heavy radial loads due to the slew ring/pinion gearing.
The slew pinions are available with many different modules and number of teeth to suit the various kinds of slew rings.
The range covers 15 different sizes for torque from 1.000 up to 130.000 Nm.
An Introduction to Slewing Drive Gearboxes
Slewing ring, also known as slewing bearings or turntable bearing, is a large bearing which is able to sustain the more axial load, radial load and tilting moment. It is known as: “machine joints”, the essential machinery transmission parts, between the two objects that need to be relative rotary motion. It has the inner and outer ring, rolling and other components.
One can consider the slewing drive as a gearbox because the core motion components are the slewing bearing and worm shaft. It also consists of auxiliary components such as seals, housing, and motor. As a power source, slew motor is usually DC planetary gear motor or AC gear motor. AC hydraulic motor is mainly used in the construction machinery as a power drive system. As the core component is slewing ring drive, slewing gearbox can readily withstand the axial and radial forces. The slew drive working principle: The worm is driven by the motor, which drives the outer ring of the slewing ring to rotate; The outer ring output the torque through the flange and the inner ring of the slewing ring is fixed in the housing.
Slewing drive gearboxes has reverse self-locking because of worm gear drive with reverse self-locking characteristics. This feature greatly enhances the stability of the host operating and safety factor. Compared to the traditional swing products, slewing drive gearbox is easy to install, easy to maintain, and saves considerable installation space.
Slewing Bearing, Slewing Driver, China Gear Bearing Manufacturer
Wanda Slewing Bearing Co.,Ltd. is a professional manufacturer and exporter of slewing bearing/slewing ring/slew circle and slewing drives/slew drive, which are mainly applied in port machinery, mining machinery, welding machinery, construction vehicles, modular vehicles, single or dual axis solar tracking systems, and small wind power systems etc.
By adopting slewing bearing as its core component,slewing drive can bear axial force, radial force and tilting moment simultaneously. Slewing drive is widely applied in modular trailers, all types of cranes, aerial working platform, solar tracking systems and wind power systems.
Electric and planetary gearboxes can be designed according to customer's requirment.Slewing drive has the advantage for saving space in facilities,max load capacity in a compact design,extensive lifespan, reduced maintenance costs.
