Bearings Flashcards

1
Q

What does a plain bearing do?

A

A support that holds a rotating shaft

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2
Q

What do bearings in general do?

A

because friction and wear will take place, bearings reduce that by allowing the shafts to spin more efficiently.

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3
Q

What does friction do to the material?

A

wears it down and makes the shaft spin more inefficiently.

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4
Q

What is a sleeve of bearing material called?

A

A bush.

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5
Q

What is a bush usually made out of?

A

bronze

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6
Q

what is a disadvantage of using a bush to support bearings by adding some kind of ‘bearing material’

A

overtime it has to be removed or replaced

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7
Q

Why is nylon a good choice for a bush?

A

Its a self lubricating material and some ceramics are being used

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8
Q

What are ceramic bearings?

A

bearings that are produced through the sintering process

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9
Q

How is a journal bearing different from a plain bearing?

A

it has a layer of grease or oil between the rotating shaft and support

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10
Q

What is a ball bearing?

A

spherical steel balls are held in a ball race tat allows the inner race to spin independently from the outer race

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