Chain coupling kit with 72-tooth and 16-tooth sprocket pair for MD SHD commercial door operators. Genuine Genie OEM replacement part number 109049.0010.S designed for Genie commercial door operators. Consult your operator service manual or contact Genie commercial parts support with your model and serial number to confirm fitment.
A: The 72/16 designation refers to the two-sprocket pair included in this kit - a 72-tooth driven sprocket and a 16-tooth drive sprocket. This combination provides a gear reduction ratio of 4.5:1, reducing shaft speed and increasing torque output at the door lifting mechanism.
A: MD SHD stands for Medium Duty Super Heavy Duty, indicating this kit is designed for operators rated for heavy commercial door applications. The SHD suffix also references a shielded configuration, meaning the chain and sprocket assembly includes a protective shield or guard over the drive components.
A: The .S suffix on the part number indicates this is a shielded variant of the 109049.0010 kit, meaning it includes protective shielding over the chain and sprocket assembly for added safety and debris protection.
A: This kit is intended as a direct replacement for worn or damaged chain coupling and sprocket assemblies on compatible Genie commercial operators. You should replace this assembly if you notice chain slippage, excessive noise, visible sprocket tooth wear, elongated chain pitch, or operator performance degradation.
A: You should cross-reference against the 111996 series roller chain couplers and earlier sprocket assemblies in the 109049 family. Contact Genie or an authorized distributor with your operator model and serial number to confirm compatibility before ordering.
