Reduction Gears

Question 1

Cardan shaft can handle a misalignment of ___ deg

Answer 1

.25 deg

Question 2

What are the three types of cardan shafts?

Answer 2

Tracta joint, Rzeppa, and hooks universal joint

Question 3

A squeaking roller bearing means?

Answer 3

inadequate lubrication or insufficient load

Question 4

A crunching noise in a bearing means ?

Answer 4

Presence of dirt, clean immediately

Question 5

An intermittent noise in a roller bearing means?

Answer 5

indicates damage to a ball bearing

Question 6

A metallic noise in a ball bearing means?

Answer 6

damaged ball

Question 7

Roller bearings are capable of what type of loads?

Answer 7

Radial and axial

Question 8

Eaton airflux drum clutches utilize air pressure to force friction against a drum to provide?

Answer 8

Positive alignment

Question 9

At what time should shaft alignment measurements be taken?

Answer 9

After sunset and before sunrise to minimize effects of solar hull distortion from radiation

Question 10

Whenever practical, pumps should be orientated in what way?

Answer 10

Horizontal pumps should be oriented longitudinally to minimize the gyroscopic loading of the pump and motor shaft bearings

Question 11

Wichita disc type clutches are used to inflate a ?

Answer 11

bladder

Question 12

Eaton disc type clutches use air to move a?

Answer 12

piston that forces clutch plates tighter

Question 13

What is a cutlass bearing made of and how is it cooled?

Answer 13

Rubber/water lubricated or fiberglass reinforced epoxy

Question 14

What type of bearing is used on the ships exterior?

Answer 14

cutlass

Question 15

Historical gear-Kingsbury?

Answer 15

thrust

Question 16

Type of gear used in red gears worm gear?

Answer 16

spur

Question 17

if the ultrajet model 305 on the LRI II has not been operated for a long period why do you rotate the shaft?

Answer 17

to lubricate the bearings

Question 18

What bearings are generally used in small MRG’s are rigid, and capable of supporting radial and axial loads?

Answer 18

roller bearings

Question 19

What cut are RG teeth?

Answer 19

helical cut