5 Questions
What type of reduction gearing is commonly used in high-torque, lightweight starter motors?
Planetary gearset
What is a characteristic of the gearset used in a Delco-Remy 39 MT starter motor?
Compact and lightweight
What is the primary purpose of reduction gearing in a starter motor?
To transform high-speed, low-torque into low-speed, high-torque
What is NOT a characteristic of a planetary gearset?
High-speed and low-torque
What is an advantage of using a planetary gearset in a starter motor?
Compact design and high power-to-weight ratio
Study Notes
Starter Motor Gear Reduction
- In high-torque, lightweight starter motors, such as the Delco-Remy 39 MT, a specific type of gear reduction is used.
- The correct type of reduction gearing is a planetary gearset.
- Planetary gearset is used to achieve high torque and light weight in starter motors.
Other Options
- Crown and pinion gearset is not used in high-torque, lightweight starter motors like Delco-Remy 39 MT.
- Aluminum gear teeth is not a type of gear reduction.
- Viscous drive is not a type of gear reduction used in starter motors.
This quiz is about the type of reduction gearing used in a high-torque, lightweight starter motor, such as a Delco-Remy 39 MT. Identify the correct gearset from the options.
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