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WorksheetsPlanetary Gear Basics
Total questions: 16
Worksheet time: 8mins
Which gear is not part of a planetary gear set?
Hypoid gear
Ring gear
Sun Gear
Carrier gear
Which planetary gear has pinion gears that are often called "The Planets"?
Sun Gear
Carrier gear
Ring gear
Annulus gear
If the sun gear is turning Clockwise (CW) what direction will the planet pinions turn?
Clockwise (CW)
Counter Clockwise (CCW)
They won't turn at all and instead they will rotate as an assembly.
They will thrust to the right
If the planet pinions are turning clockwise the ring gear will also turn clockwise.
True
False
Within a simple planetary gear set, in order to have a driven output there must be: (Choose all Correct answers)
A drive input
A reaction member
A clutch pack
An accumulator
Which gear in the planetary gear set is considered the largest gear?
Sun gear
Ring gear
Annulus gear
Carrier gear
If the sun gear is the drive gear turning CW, and the carrier is the reaction gear, Which direction will the ring gear turn?
CW
CCW
Lateral.
Front to back
If the ring gear is the drive gear turning CW, and the sun gear is the reaction gear, torque on the driven gear will:
Increased
Decrease
Stay the same
If the ring gear is the drive gear turning CW, and the sun gear is the reaction gear. The driven gear will:
Be the carrier gear turning CW
Be the carrier gear turning CCW
Be the pinion gears turning CCW
Be in overdrive
When torque on the driven gear increases, the rotational speed on the driven gear:
Increases
Decreases
Stays the same
When the carrier gear and the sun gear are both drive input gears: (Multiple Answers)
The gear ratio is 1:1
The reaction gear is the ring gear
The ring gear is the driven gear
The gear set is in overdrive
The gear set is in direct drive
If the sun gear is the drive gear turning CW and the ring gear is reactionary, the planet pinion gears will be turning:
CW (clockwise)
CCW (counter clockwise)
Not on their own but as an entire assembly with the carrier gear
Which gear in the planetary gear set is considered the smallest gear?
Sun gear
Ring gear
Annulus gear
Carrier gear
Which gear in the planetary gear set is considered the medium size gear?
Sun gear
Ring gear
Annulus gear
Carrier gear
When the sun gear is driving the ring gear (carrier is reactionary): (Choose all that apply)
Torque goes up and speed goes down on the ring gear
Torque goes down and speed goes up on the ring gear
The gears are in overdrive
The gears are in underdrive
The gears are in direct drive
Reaction gears that vary in rotational speed will cause an output gear ratio that will also vary.
True
False
