Quote:
Originally Posted by Johnny_5
Maybe help me understand here. I understand how the DOG shifting mechanism works, but what are the advantages of using a roll pin over that?
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The roll pin referred to here is for replacing the #4-40 DOG shifting screw that goes through the dog. While the high-strength #4-40 screw that comes with the gearbox is plenty sufficient for shifting in drives, some teams using previous dog shifters, or shifting dogs for things other than the drive have had issues with the dog screws bending. The .125" roll pin has a much higher shear strength than the #4-40 screw, so replacing the screw with the roll pin will allow the dog to take much higher loads than before.
In the drivetrain, there is no real advantage using the roll pin. However, for teams making things like kickers, or other high load gearboxes, the .125" roll pin could prove to be a significant advantage.