In 
Out3x7x3 Rubber
Product Overview
The Halo series of bearings are a high quality steel/chrome bearing with rubber seals. These bearings have been tested and proven by many racers.
The 3x7x3 Rubber 683-2RS bearing is commonly used in the B6 steering system and in the T-Rex 600 Helicopter. Check your manual for the correct size for your vehicle if you are not certain.
