Frequently bought together:
Description
The 40SDS42 is a single-strand, Type B Quick Detachable (QD) roller chain sprocket precision-engineered for standard #40 roller chain (1/2" pitch). It features 42 teeth and requires an SDS-series tapered QD bushing to clamp tightly onto the driven shaft.
Product Specifications
- Industry Designation: 40SDS42
- Compatible Chain Size: #40 ANSI Standard Roller Chain (1/2" Pitch)
- Tooth Count: 42 Teeth
- 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: 6.691 inches (169.95 mm)
- Outside Diameter: 6.972 inches (177.04 mm)
- Nominal Tooth Width: 0.284 inches (7.21 mm)
- Hub Diameter: 3-3/16 inches (81.0 mm)
- Sprocket Weight: ~2.44 lbs (rim only)
Key Features
- Split-Taper QD Compression: Designed to interlock 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 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 both your chain and sprocket.
- High-Carbon Steel Build: Fabricated from rugged carbon steel to maintain tooth geometry and keep parallel chain lines stable over extended industrial operating lifetimes.
- Universal Interchangeability: Fully conforms to strict ANSI benchmarks, allowing the rim layout to cross-interchange completely with major component brands like Martin Sprocket & Gear, U.S. Tsubaki, and Tritan.
Common Industry Applications
This speed reduction sprocket is ideally used for mid-sized driving loops in automated warehouse conveyor configurations, sorting mechanisms, packaging equipment lines, and light-to-medium agricultural machinery drives.
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