Product Description
The Genie 111102.0002.S is a factory replacement #50 roller chain sprocket assembly for Genie commercial gate and door operators Models J (Jackshaft), H (H-Rail trolley), and GH (Gear Head Hoist). This variant features 2 teeth with a 1-1/4 inch bore diameter, designed to mate with #50 roller chain (5/8 inch pitch). The 1-1/4 inch bore accommodates the specific shaft diameter found on qualifying J, H, and GH operator drive assemblies. Selection of the correct tooth count allows the installer to configure the appropriate drive ratio for the gate weight, travel distance, and desired cycle speed of the application. Genie offers this same 1-1/4 inch bore sprocket family in five tooth counts (31T, 36T, 40T, 48T, and 60T) to cover the full range of commercial gate operator drive requirements.
Key Features
- #50 roller chain compatibility with 5/8 inch pitch for reliable, high-load power transmission
- 60-tooth count delivers maximum mechanical advantage and highest torque output in the 1-1/4 inch bore family
- 1-1/4 inch bore size for direct shaft mounting on compatible Genie J, H, and GH operator drive shafts
- Largest tooth-count variant in the 1-1/4 inch bore series - optimized for heavy-duty gate applications
- Low output speed configuration reduces stress on gate hardware during high-cycle or heavy-load operation
- Direct OEM replacement assembly ensures proper fitment and performance for Genie commercial operators
Compatibility Guide
- Genie Model J Jackshaft Commercial Gate Operator
- Genie Model H H-Rail Trolley Commercial Gate Operator
- Genie Model GH Gear Head Hoist Commercial Gate Operator
Professional Specs
| Feature | Specification |
|---|
| Model | Genie 111102.0002.S |
| Item Type | Sprocket Assembly |
| Dimensions | 1-1/4 inch bore; 60-tooth; #50 chain (5/8 inch pitch) |
| Mounting | Shaft-mount; 1-1/4 inch bore |
Frequently Asked Questions
Q: What chain pitch is required for this sprocket?
A: This sprocket is designed for #50 roller chain, which has a 5/8 inch pitch. Using any other chain pitch will result in improper engagement and premature wear.
Q: How does the 60-tooth count affect gate operator performance?
A: The 60-tooth sprocket provides the maximum mechanical advantage in the 1-1/4 inch bore family (which also includes 31T, 36T, 40T, and 48T variants). More teeth means a larger driven sprocket relative to the drive sprocket, yielding lower output speed and higher output torque - ideal for heavy-duty or high-cycle gate applications.
Q: When should I choose the 60T sprocket over a lower tooth-count option like the 31T or 40T?
A: This is the largest tooth-count option in the 1-1/4 inch bore family for these Genie models. It is best suited for heavy gates, steep inclines, or applications where maximum torque is needed and reduced chain speed is acceptable.
Q: Is this sprocket compatible with all three listed Genie commercial operator models?
A: Yes. This sprocket assembly is compatible with Genie Model J (Jackshaft), Model H (H-Rail Trolley), and Model GH (Gear Head Hoist) commercial operators. Always verify the bore size and chain pitch match your operator's drive shaft before installation.
Q: Are there any legacy or superseded part numbers I should be aware of?
A: No superseded or legacy part numbers have been identified for this specific variant. Always reference the current Genie parts documentation or an authorized distributor to confirm the correct replacement part number.
