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Description
The 60X21 (commonly listed as Weld-On Sprocket 60X21 or 60CHN21TEETH) is a high-strength, single-strand weld-on roller chain sprocket. It is precision-machined to work with standard #60 roller chain (3/4" pitch) and features 21 teeth. It is engineered with an "X" type hub bore (weld-on style), requiring a matching X-series weld-on hub (sold separately) to achieve the desired shaft bore size.
Product Specifications
- Industry Designation: 60X21
- Compatible Chain Size: #60 ANSI Roller Chain (3/4" Pitch)
- Tooth Count: 21 Teeth
- Required Hub Type: "X" Series Weld-On Hub (e.g., X1/2, X1, etc.)
- Hub Bore Capacity: Accommodates finished shaft diameters from 1/2" up to 1-1/2" max bore
- Pitch Diameter (PD): 5.045 inches (128.14 mm)
- Outside Diameter (OD): 5.430 inches (137.92 mm)
- Nominal Tooth Width: 0.459 inches (11.66 mm)
- Sprocket Thickness: 0.459 inches (11.66 mm)
- Sprocket Weight: ~2.10 lbs (rim only)
Key Features
- Weld-On Flexibility: The "X" style center opening allows you to choose and weld in a specific stock hub that matches your machine's exact shaft diameter, eliminating the cost of custom-machined sprockets.
- Low-Carbon Steel Construction: Manufactured from high-quality, low-carbon steel optimized for excellent weldability, ensuring a permanent, high-strength bond to the hub without fracturing under thermal stress.
- Precision Profile Teeth: Machined to strict ANSI dimensions to guarantee seamless roller chain engagement, reduced friction, parallel alignment, and minimal vibration.
- Universal Interchangeability: Designed to cross-interchange completely with major power transmission brands, including Martin Sprocket & Gear (60X21), U.S. Tsubaki, and Mac Chain.
Common Industry Applications
This weld-on drive component is heavily utilized in high-torque agricultural equipment (such as grain augers, spreaders, and balers), industrial conveyor systems, forestry machinery, heavy machinery power loops, and custom repair jobs where quick shaft size customization is required.
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