3x7x3 Metal

The Halo series of bearings are a high quality steel/chrome bearing with metal shields. These bearings have been tested and proven by many racers.

The 3x7x3 Metal 683ZZ bearing is commonly used in the T-Rex 600 Helicopter. Check your manual for the correct size for you vehicle if you are not certain.

• METRIC: 3mm (Inner) x 7mm (Outer) x 3mm (Width)
• STANDARD: 0.11811" (Inner) x 0.27559" (Outer) x 0.11811" (Width)