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Description
The 40SDS45 (commonly designated as 40CH45TH SDS) is a single-strand, Type B Quick Detachable (QD) roller chain sprocket engineered for standard #40 roller chain (1/2" pitch). It features 45 teeth and requires an SDS-series tapered QD bushing to clamp securely onto a drive shaft.
Product Specifications
- Industry Designation: 40SDS45 / 40CH45TH SDS
- Compatible Chain Size: #40 ANSI Roller Chain (1/2" Pitch)
- Tooth Count: 45 Teeth
- Required Bushing Type: SDS Quick Detachable Bushing (sold separately)
- Bushing Bore Capacity: Accommodates shaft diameters from 1/2" up to 2" maximum bore
- Pitch Diameter: 7.168 inches (182.07 mm)
- Outside Diameter: 7.450 inches (189.23 mm)
- Nominal Tooth Width: 0.284 inches (7.21 mm)
- Hub Diameter: 3-3/16 inches (81.0 mm)
- Sprocket Weight: ~3.32 lbs (rim only)
Key Features
- Split-Taper QD Compression: Utilizes an interchangeable SDS bushing. When tightened with standard pull-up bolts, the bushing compresses uniformly across the shaft to provide a solid press-fit, preventing keyway wallow and shaft slippage under sudden high-torque loads.
- Concentric Tooth Machining: Precision-machined with bores concentric to the pitch line, which dramatically minimizes run-out, limits chain vibration, and increases the service life of your entire drive assembly.
- High-Carbon Steel Build: Fabricated from rugged carbon steel to maintain tooth geometry and parallel chain lines over extended industrial operating lifetimes.
- Interchangeable Design: Fully conforms to strict ANSI standards, ensuring it can cross-interchange completely with major component brands like Martin Sprocket & Gear, U.S. Tsubaki, and Tritan.
Common Industry Applications
This reduction sprocket is ideal for mid-sized speed adjustment loops in automated warehouse conveyors, sorting machinery, material handling equipment, and light-to-medium industrial power drives.
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