Slewing drives are becoming increasingly popular due to the simplicity of installation

QCB offers a range of standard OPEN and ENCLOSED slew drives including the:

WGS Series                                 Open helical gear and worm shaft

WGSE Series                               Enclosed helical gear & worm shaft 

WGWEA Series                           Enclosed worm gear & shaft, sealed
                                                  Single and double drive (larger sizes)

WGWEB Series                           Enclosed worm gear & shaft with improved seals
                                                  Single and double drives (larger sizes)

WGWEA2 Series                         Twin raceway bearings with single or dual drive which emulate
                                                  the dimension plans of IMO and Liebherr slew drives
                                                  Single and double drives available

WGHSE Series                            Improved gear performance for modular transporters
                                                  Single and double drives available 

WGR Series Rotation drives          A simple worm drive with spur gear output intended to power light 
                                                  and medium series slewing rings.

SGSDE Series                              Enclosed spur gear slew drives

Applications 

Slewing drives are designed for slow moving applications (2-3 rpm) such as:-

Truck mounted cranes
Access platforms
Turntables
Solar tracking devices
Satellite communication systems
Small wind turbines (yaw axis)
Materials handling devices
Turnover & assembly jigs
Marine thrusters

Due to the performance characteristics of worm gearing they are not suitable for high speed, continuous operation with long duty cycles. The SGSDE systems will be better suited to this sort of application.

Dual axis drive, high precision and zero backlash units will be imported for specific projects.