I am not sure, I don't know a lot about deere corn heads but i am pretty sure that it is the exact same thing as a 600 series corn head. 600's don't have any berings on the front of the stalk rollers do they?
Frontier's CH21 Series and CH22 Series Corn Heads have been designed to provide increased wide-row corn head options that complement the current John Deere corn head model mix. The CH2112 and CH2208 Corn Heads provide the high-capacity and productivity features growers are looking for in the unique wide-row configuration.
These corn heads utilize John Deere row units, a similar design, and a frame with rugged construction to deliver durability and dependability second to none.
CH2112 is a 12-row non-chopping model with 36-in. or 38-in. row spacing.
CH2208 is an 8-row chopping model with 36-in. or 38-in. row spacing.