Ramsey A-54137-NN-228531-D is a keyed sprocket gear featuring 39 teeth and a 4" bore for secure shaft engagement with a keyway. Designed for chain-drive power transmission systems, this 39-tooth sprocket fits a 4-inch bore in compatible assemblies. The model is specifically identified as A-54137-NN-228531-D and is offered as Ramsey’s keyed sprocket gear solution for precise torque transfer.
