车轴
chē zhoú · HSK 7
axle
🛞 车轴 = vehicle + axis — the axis of a vehicle is its axle
车 (chē) means vehicle or car, 轴 (zhóu) means axis or shaft. Together they literally name the shaft that connects a vehicle's wheels. The pronunciation 'chē zhóu' — think 'CHEck the JOUrnal bearing' as a sound anchor.
车 — pictograph of a chariot/cart
车 is a pictograph originally drawn as a top-down view of a chariot, showing the axle, wheels, and carriage box. The ancient form 車 clearly depicted two wheels connected by an axle. It still means vehicle, cart, or car today.