Kennametal Executive Engineer Interview Questions and Answers

A ball screw is a mechanical linear actuator that translates rotational motion to linear motion.

• Consists of a screw shaft with a ball nut that moves along the threads of the screw

• Ball bearings in the nut reduce friction and allow for smooth motion

• Used in various applications such as CNC machines, robotics, and aerospace industry

A spindle cross section is a diagram showing the internal structure of a spindle used in machinery.

• Spindle cross section typically shows the arrangement of bearings, shaft, and other components inside the spindle.

• It helps in understanding the functionality and design of the spindle.

• Examples of components shown in a spindle cross section include ball bearings, housing, and lubrication system.

Different types of bearings include ball bearings, roller bearings, and plain bearings, each with specific applications.

• Ball bearings are used in applications requiring low friction and high speed, such as in wheels and conveyor belts.

• Roller bearings are suitable for heavy radial loads, like in automotive transmissions and industrial machinery.

• Plain bearings, also known as bushings, are used in applications where lubri...read more

Roller bearings have cylindrical rollers while spherical bearings have spherical rollers for increased load capacity and misalignment compensation.

• Roller bearings have cylindrical rollers that distribute load evenly across a larger surface area

• Spherical bearings have spherical rollers that allow for misalignment compensation

• Roller bearings are more suitable for high radial loads while spherical bearings are better for ...read more