WLtoys K170 Main Drive Gear Set - High-Strength Transmission Parts

Restore Silent Power and Smooth Motor Efficiency

A "grinding" noise or a sudden loss of lift usually indicates stripped or chipped teeth on the main gear. This WLtoys K170 Gear Set solves the issue of power loss caused by gear wear. As the central component that transfers torque from the brushless motor to the main rotor, a fresh gear ensures maximum efficiency, quieter operation, and longer flight times for your UH-60L Black Hawk. Ships worldwide.

Product Highlights

• Reinforced Nylon Material: Self-lubricating, high-strength plastic designed to withstand the high torque of brushless motors.

• Precision Tooth Profile: Engineered for perfect mesh with the motor pinion, reducing heat buildup and mechanical friction.

• Lightweight Design: Optimized to reduce rotational mass, allowing the motor to spool up faster and respond more accurately to throttle changes.

• Integrated Hub: Features a precision-molded center to ensure the gear sits perfectly perpendicular to the main shaft, preventing "gear wobble."

Compatibility

For the WLtoys K170 UH-60L 4CH Brushless RC Helicopter only.
Full model page (specs & photos):
https://www.kidstoylover.com/en-us/products/wltoys-k170-uh-60l-2-4ghz-4ch-brushless-military-rc-helicopter

What’s in the Box

• 1 x Main Drive Gear Set

Install Tips

• Gear Mesh: When installing, ensure there is a tiny amount of "backlash" (a hair's width of space) between the motor pinion and the main gear to prevent binding.

• Shaft Pin Alignment: Align the gear's mounting hole perfectly with the main shaft hole before inserting the locking pin to avoid stressing the plastic hub.

• Clean the Pinion: Use a brush to remove any debris from the motor's metal pinion before installing the new gear to prevent premature tooth wear.

Support & Warranty

• Expert help to choose the right WLtoys K170 spare parts
• 3-month warranty on manufacturing defects
• Ships worldwide

Other Related Parts

Need gears, shafts, servos, LEDs, batteries and more? Browse the full WLtoys K170 spare parts collection:
https://www.kidstoylover.com/collections/wltoys-k170-rc-helicopter-spare-parts-accessories