Right angle gearboxes are seen as a the actual fact that the drive shaft and the result shaft are organized at an angle of 90 degrees. With respect to the gearbox type, the axes can intersect in a plane or cross on two parallel planes, which results in an axis offset.
Correct angle gearboxes are realized with different types of gear teeth or a mixture of different gearing types. The most famous single-stage gearbox types are bevel and worm.
Due to the high single stage ratios and the low efficiency level, worm gears can achieve a self-locking effect. With worm gears it is also possible to get a hollow shaft as the drive shaft.
Bevel gearboxes come with various kinds of gearing. Bevel gearboxes with intersecting axes are understood using bevel gearing with directly, helical or spiral teeth. Hypoid gearboxes have helical bevel gearing with which the axes cross with an axis offset. The bandwidth of technically sensible ratios with that your bevel gear stage could be realized is larger with hypoid gearboxes than with the classical bevel equipment teeth.
Bevel gearboxes can also be combined with other gearbox types. A regular application in this respect is the mixture with a planetary gearbox, whereby the planetary gearbox could be connected upstream or downstream. This results in a wide range of overall multiplication elements and wide variety of uses in lots of industrial applications.
The efficiency degree of bevel gearboxes is typically less than that of coaxial spur gearboxes, particularly in comparison to planetary gearboxes. This is because the bevel gear stage generates a higher degree of axial force and radial pressure, which has to be absorbed by suitable bearings. This escalates the power reduction, which is particularly notable in the drive stage of the gearbox.
The working noise and the transmittable torques of classic bevel gearboxes are also less than with single spur equipment teeth. Hypoid gearboxes, however, are extremely noisy and may transmit huge amounts of torque, but 
a great deal of bearing load takes place in the bevel gear stage of these gearboxes.
In summarizing, the right angle gearbox is generally used when the amount of installation space in the application form is bound, or an angular arrangement between the drive and the output is necessary by the application. They are also used in instances where in fact the input shaft must be hollow to be able to lead through lines or use clamping sets.