Planetary Gear Basics

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