Frequently bought together:
Description
The 50SDS22H is a single-strand, Type B Quick Detachable (QD) roller chain sprocket precision-engineered for standard #50 roller chain (5/8" pitch). It features 22 teeth paired with a high-durability induction-hardened rim ("H"), requiring an SDS-series tapered QD bushing to clamp securely onto a drive shaft.
Product Specifications
- Industry Designation: 50SDS22H
- Compatible Chain Size: #50 ANSI Standard Roller Chain (5/8" Pitch)
- Tooth Count: 22 Teeth
- Hardened Teeth: Yes (Induction-hardened tooth profiles)
- Required Bushing Type: SDS Quick Detachable Bushing (sold separately)
- Bushing Bore Capacity: Accommodates finished shaft diameters from 1/2" up to 2" maximum bore
- Pitch Diameter: 4.392 inches (111.56 mm)
- Outside Diameter: 4.722 inches (119.94 mm)
- Nominal Tooth Width: 0.343 inches (8.71 mm)
- Hub Diameter: 3-3/16 inches (3.188")
- Sprocket Weight: ~1.44 lbs (rim only)
Key Features
- Induction-Hardened Teeth ("H"): The tooth profiles undergo specialized heat treatment to resist aggressive abrasive wear. Hardened small driver sprockets are highly recommended when working with a drive ratio of 4:1 or greater to significantly extend the service life of both your chain and sprocket.
- Split-Taper QD Compression: Pairs with an interchangeable SDS bushing. When drawn tight with standard pull-up bolts, the bushing compresses uniformly across the shaft to create a true mechanical press-fit, preventing keyway wallow and shaft slippage under sudden high-torque loads.
- Concentric Tooth Machining: Precision-machined from high-carbon steel with a bore structure perfectly concentric to the outer pitch line. This tight structural tolerance minimizes run-out, limits chain vibration, and noticeably extends the service life of your entire drive assembly.
- Universal Interchangeability: Fully conforms to strict ANSI benchmarks, ensuring the rim layout can cross-interchange completely with major power transmission brands like Martin Sprocket & Gear, U.S. Tsubaki, and Tritan.
Common Industry Applications
This small driver sprocket is widely utilized for compact, high-torque reduction configurations in agricultural machinery (such as feeding equipment, conveyors, or spreaders), automated processing conveyor lines, packaging plant systems, and heavy-duty industrial power drive loops.
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