Right angle gearboxes are characterized by the fact that the drive shaft and the output shaft are arranged at an angle of 90 degrees. According to the gearbox type, the axes can intersect in a plane or cross on two parallel planes, which results within an axis offset.
Right angle gearboxes are recognized with different types of gear teeth or a mixture of different gearing types. The most popular single-stage gearbox types are bevel and worm.
Due to the high solitary stage ratios and the reduced efficiency level, worm gears can achieve a self-locking impact. With worm gears additionally it is possible to possess a hollow shaft as the drive shaft.
Bevel gearboxes come with different types of gearing. Bevel gearboxes with intersecting axes are realized using bevel gearing with straight, helical or spiral teeth. Hypoid gearboxes possess helical bevel gearing with which the axes cross with an axis offset. The bandwidth of technically sensible ratios with that your bevel gear stage can be realized is bigger with hypoid gearboxes than with the classical bevel gear teeth.
Bevel gearboxes can also be combined with other gearbox types. A frequent software in this respect is the mixture with a planetary gearbox, whereby the planetary gearbox could be connected upstream or downstream. This results in an array of overall multiplication factors and wide range of uses in many industrial applications.
The efficiency degree of bevel gearboxes is typically lower than 
that of coaxial spur gearboxes, particularly compared to planetary gearboxes. That is because the bevel gear stage generates a higher degree of axial drive and radial push, which needs to be absorbed by appropriate bearings. This escalates the power loss, which is particularly notable in the drive stage of the gearbox.
The running noise and the transmittable torques of classic bevel gearboxes are also lower than with single spur gear teeth. Hypoid gearboxes, on the other hand, are extremely noisy and will transmit large amounts of torque, but a great deal of bearing load takes place in the bevel equipment stage of the gearboxes.
In summarizing, a right angle gearbox is usually used when the quantity of installation space in the application form is bound, or an angular arrangement between the drive and the output is necessary by the application. Also, they are used in situations where the input shaft must be hollow to be able to lead through lines or make use of clamping sets.