Heavy Duty Equipment Technician Red Seal Exam Prep · Question
What type of gear arrangement is typically used in the final drive reduction of heavy construction equipment such as excavators and dozers for high torque multiplication?
Planetary gearsets are commonly used in final drives of heavy construction equipment because they offer high torque multiplication in a compact package, distrib
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Question: What type of gear arrangement is typically used in the final drive reduction of heavy construction equipment such as excavators and dozers for high torque multiplication?
Answer options:
- Hypoid gears
- Worm gears
- Spiral bevel gears ✅ Planetary gears
Correct answer: Planetary gears
Explanation: Planetary gearsets are commonly used in final drives of heavy construction equipment because they offer high torque multiplication in a compact package, distributing the load over multiple gears. Hypoid and spiral bevel gears are typical for differential ring and pinion sets, and worm gears are less common for primary motive power drives in this application due to lower efficiency.
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