The Genie 110663.0003.S is an OEM replacement chain sprocket designed for Genie commercial door operators. Featuring 43-Tooth #35 Chain Sprocket - 3/8 in Pitch - Service Replacement, this part meets Genie factory specifications for reliable drivetrain performance. Manufactured from carbon steel, standard finish; no od zinc coating on this variant to withstand commercial duty cycling. Key dimensions: 43 teeth, #35 chain, 3/8 in pitch; bore and hub dimensions per service specification. Mounting method: Plain bore, no keyway; secured to operator shaft via set screws for field service installation.
| Feature | Specification |
|---|---|
| Model | Genie 110663.0003.S |
| Item Type | Chain Sprocket |
| Materials | Carbon steel, standard finish; no OD Zinc coating on this variant |
| Dimensions | 43 teeth, #35 chain, 3/8 in pitch; bore and hub dimensions per service specification |
| Mounting | Plain bore, no keyway; secured to operator shaft via set screws for field service installation |
A: The .0003.S suffix designates a service replacement part. The 'S' indicates it is intended for field installation as a direct replacement on existing Genie commercial door operator shafts, supplied without a keyway for set-screw style mounting.
A: This sprocket is designed for ANSI #35 roller chain, which has a 3/8 in pitch. Using a different chain pitch such as #25 (1/4 in pitch) or #41 (1/2 in pitch) would result in improper meshing and must be avoided.
A: Part number 110663.0013 is the alternate 43-tooth #35 sprocket variant that includes an OD Zinc finish for enhanced corrosion resistance on the tooth profile. The 110663.0003.S is the standard service replacement without that finish upgrade.
A: This sprocket is compatible with Genie commercial door operator models including the GCL-MH, GCL-MJ, GCL-T, GCL-GT, GCL-GH, and GCL-Fire series that utilize #35 roller chain drive systems. Always verify the shaft diameter and operator model before ordering.
A: Because this is a plain-bore service sprocket without a keyway, it is secured to the operator shaft using set screws. Ensure set screws are torqued to the appropriate specification and that the shaft diameter matches the bore of this sprocket to prevent slippage.