Right angle gearboxes are seen as a the actual fact that the drive shaft and the output shaft are arranged at an angle of 90 degrees. Based on the gearbox type, the axes can intersect in a plane or cross on two parallel planes, which results within an axis offset.
Correct angle gearboxes are realized with different types of gear teeth or a mixture of different gearing types. The most popular single-stage gearbox types are bevel and worm.
Because of the high solitary stage ratios and the low performance level, worm gears can achieve a self-locking effect. With worm gears it is also possible to have a hollow shaft as the drive shaft.
Bevel gearboxes include various kinds of gearing. Bevel gearboxes with intersecting axes are understood using bevel gearing with straight, helical or spiral the teeth. Hypoid gearboxes possess helical bevel gearing with which the axes cross with an axis offset. The bandwidth of technically sensible ratios with which the bevel gear stage could be realized is bigger with hypoid gearboxes than with the classical bevel equipment teeth.
Bevel gearboxes may also be combined with other gearbox types. A regular app in this respect is the mixture with a planetary gearbox, whereby the planetary gearbox can be connected upstream or downstream. This results in an array of overall multiplication factors and wide variety of uses in lots of industrial applications.
The efficiency level 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 drive and radial push, which needs to be absorbed by appropriate bearings. This increases the power loss, which is particularly notable in the drive stage of the gearbox.
The operating 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 may transmit huge amounts of torque, but a considerable amount of bearing load happens in the bevel gear stage of the gearboxes.
In summarizing, a right angle gearbox is at all times used when the quantity of installation space in the application form is limited, or an angular arrangement between the drive and the output is necessary by the application. Also, they are used in instances where the input shaft needs to be hollow in order to lead through lines or use clamping sets.