When there is only one gear on each shaft, as shown in above figure, the assembly is known as simple gear train. The gears are represented by their pitch circles.When the distance between two shafts is small, gear 1 and gear 2 are made to mesh with each other to transmit motion from one shaft to the other, as shown at (a) in above figure. Since gear 1 drives gear 2, gear 1 is called the driver and gear 2 is called the driven or follower. It may be noted that the motion of the driven gear is opposite to the motion of driving gear. If

When there is only one gear on each shaft, as shown in above figure, the assembly is known as simple gear train. The gears are represented by their pitch circles.When the distance between two shafts is small, gear 1 and gear 2 are made to mesh with each other to transmit motion from one shaft to the other, as shown at (a) in above figure. Since gear 1 drives gear 2, gear 1 is called the driver and gear 2 is called the driven or follower. It may be noted that the motion of the driven gear is opposite to the motion of driving gear. If