The Genie 111916.0026.S is an OEM sprocket assembly designed for use on Genie J (Jackshaft), H (H-rail), and GH (next-gen H-rail) commercial door operators, fitted for ANSI #50 roller chain (0.625 in pitch). This variant features a 26-tooth drive sprocket with a 1-inch bore diameter. Selecting the correct tooth count and bore diameter is critical: an incorrect tooth count produces the wrong gear ratio, and an incorrect bore diameter will not fit the operator shaft. The J/H/GH series uses #50 chain and is NOT interchangeable with the MH/MJ series which uses #41 chain. Sold as one sprocket assembly (each).
A: This sprocket assembly is designed for use with #50 ANSI roller chain, which has a 0.625 inch pitch. It is not interchangeable with #41 chain sprockets, which use a different pitch and tooth profile.
A: The 111916.0026.S is compatible with Genie J Series, H Series, and GH Series commercial door operators. Always verify your specific operator model and serial number before ordering to ensure proper fit.
A: No. The #50 chain sprocket and the #41 chain sprocket use different pitches and tooth geometries. Mixing chain and sprocket standards will result in improper engagement, accelerated wear, and potential drive failure.
A: The bore diameter is 1 inch, sized to match the drive shaft specifications of the compatible Genie J/H/GH operator models. Confirm your operator shaft diameter before installation.
A: The sprocket assembly is constructed of steel, which is typical for commercial door operator drive components and provides the durability required for high-cycle commercial applications.
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