Ringing Ceders

The worm drive, designed primarily for use in heavy engineering, was initially conceived in the 1800’s. The main problem associated with this gearbox is drag or friction. A worm drive gearbox has 3 teeth in mesh at any one time, which in turn cause’s excessive drag, therefore the motor has to work harder to compensate.

A motor working harder than necessary causes increased strain on the battery, which in turn leads directly to much shorter battery life and less power to make that final tee off.

Like other gear arrangements, a worm drive can reduce rotational speed or allow higher torque to be transmitted. A gearbox designed using a worm and worm-wheel will be considerably smaller than one made from plain spur gears and has its drive axes at 90° to each other.

The helical configured gearbox primarily used in motor vehicles. This gearbox when configured correctly has only 1 tooth in mesh and is very efficient with minimal drag. The problem that manufactures of motorised golf buggies have is restrictive size gearbox housings which you will soon realise is a major problem if you compare electric golf buggies. Configurations using up to 4 gears to acquire final drive ratios have to be used which in turn eliminates all efficiencies due to the fact 4 teeth are in mesh. Manufactures are forced to use small diameter plastic gears with delicate .08 of millimetre fine-pitched teeth, which often fail through normal wear and tear.

EMG is aware of the benefits and failures of both worm drive and helical configured gearboxes. The EMG solution has been to take advantage of the strong points of the worm and helical. EMG opted for a worm – helical combination, taking the strength of a worm and efficiency of the helical.

The EMG gearbox has only a pinion gear and main gear, this lends itself directly to be able to achieve the maximum diameter main gear with a massive 4mm tooth depth. This depth is only comparable to those found in your motor vehicle. EMG is extremely confident with the design and a 2 year warranty is provided.