Product Description
The electric motor used in most cranes is a type of gear motor that uses the basic principles of speed reduction to increase torque or force. The output speed of the rotor is reduced through a series of large gears until the rotating RPM speed, of the final gear is very low.
Advantages of Gear Motor
– compact, size and low weight – as much as 50% reduction with same
torque output
– high power density – several planets share the Ioad rather than one
gear, the mare planets the more sharing
– longer gear life at similar loads
– gearing can be very accurate with virtually no backlash high efficiency ~95% per stage is common
– typical ratio per stage is 9:1, 4 stages 9000:1
– coaxial arrangement – no offset output shaft
– modular, most planetary stages can be stacked