PROBLEM: Expensive shaft washout and failure can be caused by undersized material, poor shaft design, and poor clamping nut design that can allow loosening of the stack during operation. Another “catastrophic failure”.
SOLUTION: Instead of 7” shafts BCA uses 8” Chromoly shafts for the ultimate in shaft life. Where others use the old HEX shaft design or a double-key round shaft BCA uses a 6-key design where the knife literally rides on the disposable keys and not directly on the shaft. This design although requiring more machining and precision eliminates shaft washout and simplifies knife changes. The key takes any abuse instead of the shaft again insuring no “catastrophic costs” in its maintenance.