M15.8 Bearing, Seals And Accesories Flashcards

1
Q

Types of Bering systems

A
  • Fixed
  • Floating
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2
Q

Which bearing system supports the rotor in the radial direction and fixes the rotor in the axial direction

A

Fixed bearing

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3
Q

Which bearing system can only transmit radial forces because it can move axially

A

Floating

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4
Q

Which type of bearing can transmit axial and radial forces

A

Fixed bearing

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5
Q

What type of bearing system can minimise the expansion of the shaft end

A

Triple bearing system

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6
Q

Parts of a ball bearing

A
  • Inner race
  • Outer race
  • Balls
  • Cage
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7
Q

Ball bearings can transmit which loads

A

Axial and radial forces

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8
Q

What type of bearing system can a ball bearing be used in

A

Fixed

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9
Q

A floating bearing is normally what type

A

Roller bearing

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10
Q

Roller bearing parts

A
  • Outer race
  • Inner race
  • Rollers
  • Cage
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11
Q

Which forces can a roller bearing not transmit

A

Axial forces

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12
Q

Why are oil dampened bearings used

A

To reduce the dynamic loads from the rotor to the case

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13
Q

What type of bearing can oil dampened bearings be

A

Roller or ball

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14
Q

What reduces axial loads on the fixed bearing

A

Pressure balancing

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15
Q

Methods of feeding oil to bearings

A
  • Direct lubrication
  • Under-race lubrication
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16
Q

What methods permits more intense lubrication of the bearing

A

Under race or indirect

17
Q

Typical accessory drive system

A
  • Internal gear box
  • Radial drive shaft
  • Transfer gear box
  • Horizontal drive shaft
18
Q

Types of accessory units

A
  • IDG
  • Starter
  • EDP
  • Engine oil pump
  • Fuel pump
19
Q

What can then the HP rotor by hand for maintenance

A

Hand crank device

20
Q

Methods of accessory unit monitoring

A

V-Clamp or quad ring or bolted