Recap- Bearings in Aircraft Engines

Define what is Bearing?

• A device used to support shafts, and they are designed such that they can support radial load or axial load, or a combination of both

• A cylindrical part that protrudes from the motor and housing

Answer explanation

The force applied perpendicularly to the shaft is called the "radial load", and that applied in the same direction as the shaft is called the "axial load".

What is the name of the type of bearing depicted in the illustrative example?

• Ball Bearing

• Roller Bearing

Answer explanation

Ans: The rolling element of ball bearing is spherical balls. Roller bearing rolling element makes a line contact.

Choose two pictures showing ball bearings.

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________ are the most common type of ball bearings. They have greater radial load capacity.

• Radial Bearings

• Tapered Roller Bearings

• Thrust Ball Bearings

Answer explanation

The balls in radial bearings are often retained in a cage. This allows a larger number of balls to be used, giving the bearing greater radial load capacity.

Which diagram best describes a roller bearing?

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Which of the following diagrams does not show a roller bearing?

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Answer explanation

The first diagram shows a cylindrical roller bearing.

Thrust ball bearing is depicted in the second diagram. The rolling element is obviously a ball.

The third diagram shows a spherical roller bearing.