Higher Pair in Mechanical Engineering

Higher pair refers to the type of contact between two surfaces that has both rotary and translatory motion. There are several examples of higher pairs in mechanical engineering, including belt, rope and chain drives, gears, cams, ball and roller bearings, and more. In this answer, we will discuss these examples in detail.

Belt, Rope and Chain Drives

Belt, rope and chain drives are systems that transmit motion and power from one shaft to another. They are commonly used in machines like automobiles, conveyor belts, and bicycles. In these systems, the higher pair occurs between the belt, rope or chain and the pulley or sprocket. The contact between the two surfaces involves both rotary and translatory motion, making this an example of higher pair.

Gears

Gears are another common example of higher pair in mechanical engineering. They are used to transmit motion and power between two shafts that are not in the same plane. The higher pair occurs between the teeth of the gears, which have both rotary and translatory motion during operation.

Cams

Cams are mechanical devices that convert rotary motion into linear motion. They are commonly used in machines like engines, pumps and compressors. In these systems, the higher pair occurs between the cam and the follower, which is the part of the machine that is moved by the cam. The contact between the two surfaces involves both rotary and translatory motion, making this an example of higher pair.

Ball and Roller Bearings

Ball and roller bearings are used to reduce friction and support loads in machines like automobiles, airplanes, and industrial equipment. In these systems, the higher pair occurs between the balls or rollers and the raceway. The contact between the two surfaces involves both rotary and translatory motion, making this an example of higher pair.

Conclusion

In conclusion, higher pair refers to the type of contact between two surfaces that has both rotary and translatory motion. There are several examples of higher pairs in mechanical engineering, including belt, rope and chain drives, gears, cams, ball and roller bearings, and more. These systems are commonly used in machines and equipment to transmit motion and power, reduce friction, and support loads.