Beefed Up RC Boat Drive Shaft Kit With Three Propellers and Coupling Joint for DIY Power Upgrade 19.5 cm Shaft 15 cm Sleeve 3.6 cm Propellers Fits 4 mm Motor Shaft Easy Install Durable

Single Kit: RC Boat Drive Shaft Upgrade with 3 Props
✔️ Shaft 195 mm / 7.68 in, sleeve 150 mm / 5.91 in, prop 36 mm / 1.42 in, 4 mm joint

Designed to upgrade DIY RC boats or submarines by delivering efficient torque from the motor to the propeller. This kit includes all essential parts for a quick upgrade and reliable operation.

✅ Stainless steel 304 construction for strength and rust resistance
✅ Shaft length 195 mm / 7.68 in; sleeve length 150 mm / 5.91 in; prop diameter 36 mm / 1.42 in; universal joint diameter 4 mm / 0.16 in
✅ Bearing between shaft and sleeve for precise concentric power transmission
✅ Fits 4 mm motor shafts and supports 3.6 cm propellers

💡 What is an RC boat drive shaft kit used for in DIY power upgrades? This handy kit helps transfer rotational power from the motor to the propeller smoothly and reliably. - transmits torque smoothly through a universal joint - improves concentric power transmission with a shaft bearing between shaft and sleeve - supports 4 mm motor shafts and 3.6 cm propellers

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