Angular steering gear: change of direction between shafts

Useful to know

Bosch describes angle steering gears for trucks where the layout prevents a direct connection between the steering column and steering mechanism. A typical version changes the direction between shafts by 90°. [1]

In the described design, bevel gears with equal tooth counts give a 1:1 ratio. Changing the geometric direction therefore need not change the transmission ratio. This is neither a differential nor a rear-wheel steering mechanism. Identify the component by its position in the steering system and the vehicle’s actual configuration.