What are the advantages and disadvantages of double tile gear reducer

Some double tile gears are also called double rail gears or just double rail gears.They are a type of spiral bevel gear (spiral bevel internal gear).The axes of general bevel gears are perpendicular to the axes, while the axes of helical gears are perpendicular and do not intersect and have some offset.As for the characteristics of the pitch gear drive final reducer:

1. The same volume can achieve a larger transmission ratio.

2. The helix angle of the pinion is increased, so the strength of the pinion is improved (the pinion is the weaker strength of the gear pair. This will increase the life of the gear pair considering the same design common hyperboloid. Need to pair And the gears cannot be interchanged, so a complete set of gears must be replaced in one round of scribing).

3. Since the offset will change the height of the center of gravity of the whole part, the lower offset is usually used to improve stability, but for off-road vehicles, the upper offset is used to improve off-road performance.