Question

In worm and nut with re-circulating ball steering gear box, a ball nut is mounted on the ............... .

Hint:

Tip: In worm and nut gears, the nut always travels along the worm!

Answer 1

The worm and nut with re-circulating ball steering gear is a common type of steering mechanism in heavy vehicles.
It uses a worm gear with a threaded shaft called the worm.
A ball nut, containing re-circulating steel balls, is mounted on the worm.
When the steering wheel turns the worm, the balls roll between the worm and nut threads, reducing friction and moving the nut along the worm.
This movement is transferred to the sector shaft and pitman arm to turn the wheels.
The sector shaft supports the movement but the nut directly engages with the worm.
Therefore, the correct answer is worm.