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Angle Gearbox

Angle Gearbox

Right Angle Gearbox Right angle gearboxes are characterized by the fact that the drive shaft and the output shaft are arranged 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. Right angle...

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Right Angle Gearbox

Right angle gearboxes are characterized by the fact that the drive shaft and the output shaft are arranged 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.

Right angle gearboxes are realized with different types of gear teeth or a combination of different gearing types. The most popular single-stage gearbox types are bevel and worm.

Because of 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 have a hollow shaft as the drive shaft.

The efficiency level of bevel gearboxes is typically lower than that of coaxial spur gearboxes, particularly in comparison to planetary gearboxes. This is because the bevel gear stage generates a high degree of axial force and radial force, which has to be absorbed by appropriate bearings. This increases 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 can transmit large amounts of torque, but a considerable amount of bearing load occurs in the bevel gear stage of these gearboxes.

In summarizing, a right angle gearbox is always used when the amount of installation space in the application is limited, or an angular arrangement between the drive and the output is required by the application. They are also used in cases where the input shaft needs to be hollow in order to lead through lines or use clamping sets.

The advantages of right angle gearboxes:

  • Use when installation space is limited

  • Compact design

  • Can be combined with other types of gearbox

  • Quiet and high degree of torque when using hypoid gearboxes

  • Version with hollow shaft possible

The disadvantages of right angle gearboxes:

  • Complex design

  • Lower efficiency level than planetary gearbox

  • Noisier

  • Lower torques in single-stage ratio range

Transmit rotary motion at a right angle without changing speed or torque. Gear boxes are permanently lubricated to save maintenance time and effort. Connect to a motor using a shaft coupling (not included).

Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as pulleys and sprockets.

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