Brass Shaft Coupler Set 3.17mm to 3.17mm Motor Shaft Adapter 4 Pcs With M3 Screws For RC Car Airplane Robot Must Have Rigid Sleeve Transmission Joint Extension Connector

Rigid brass shaft coupler set for 3.17mm motors, 4pcs
✔️ M3 brass shaft couplers, 9 mm OD, 20 mm length, 4 pcs + screws

These brass shaft couplers provide a secure, low-backlash connection between motor shafts and driven components. Ideal for RC cars, planes, boats, robots, and other hobby gear where precise torque transfer matters.

✅ Material: Brass
✅ Thread size: M3
✅ Outer diameter: 9 mm (0.354 in)
✅ Length: 20 mm (0.79 in)
✅ Inner diameter: 3.17 mm (0.125 in)
✅ Packing: 4 x shaft couplers, 8 screws
✅ Note: Rigid type eliminates eccentricity when fully adjusted

💡 What is a common use for brass shaft couplers in hobby projects?

These handy joints securely link motors to driven parts in tight spaces.

• Securely links motor shaft to driven components in RC models
• Brass construction offers corrosion resistance for longer life
• Designed for 3.17 mm shafts with M3 screws
• Reduces wobble and backlash for smoother operation