Right angle gearboxes are characterized by the actual fact that the drive shaft and the result shaft are organized at an angle of 90 degrees. Depending on 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 noticed 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 one stage ratios and the low effectiveness level, worm gears can perform a self-locking impact. With worm gears additionally it is possible to have a hollow shaft as the drive shaft.
Bevel gearboxes come with different types of gearing. Bevel gearboxes with intersecting axes are understood using bevel gearing with straight, helical or spiral teeth. Hypoid gearboxes have helical bevel gearing with 
that your axes cross with an axis offset. The bandwidth of technically practical ratios with which the bevel gear stage could be realized is bigger with hypoid gearboxes than with the classical bevel gear teeth.
Bevel gearboxes may also be combined with additional gearbox types. A frequent app in this respect is the combination with a planetary gearbox, whereby the planetary gearbox could be linked upstream or downstream. This results in an array of overall multiplication factors and wide range of uses in lots of industrial applications.
The efficiency degree of bevel gearboxes is typically less than that of coaxial spur gearboxes, particularly compared to planetary gearboxes. That is because the bevel gear stage generates a high degree of axial drive and radial pressure, which needs to be absorbed by appropriate bearings. This escalates the power reduction, which is particularly significant in the drive stage of the gearbox.
The operating 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 the gearboxes.
In summarizing, a right angle gearbox is at all times used when the amount of installation space in the application form is bound, or an angular arrangement between the drive and the output is required by the application. They are also used in situations where in fact the input shaft must be hollow to be able to business lead through lines or use clamping sets.