Steering Mechanism:

Steering Mechanism: There are two types of steering gear mechanisms
1. Davis Steering gear 2. Ackermann Steering gear

1. Davis Steering gear :The Davis Steering gear has sliding pair, it has more

friction than the turning pair, there fore the Davis Steering Gear wear out

earlier and become inaccurate after certain time. This type is mathematically

Accurate.

Tan á = b/2l Where b= AB = distance between the pivots of front axle.

l=wheel base

2. Ackermann Steering System: It has only turning pair. It is not

mathematically accurate except in three positions. The track arms are made

inclined so that if the axles are extended they will meet on the longitudinal

axis of the car near rear axle. This system is called ackermann steering.

ref:www.carbible.com