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Roller Chain Sprockets — ANSI Standard Specifications
Search roller chain sprockets from Tsubaki, Rexnord, Browning, and other manufacturers. Filter by ANSI chain number, tooth count, bore, and hub type.
Key Specification Fields
ANSI Chain Number
Must match roller chain: 35, 40, 50, 60, 80, 100, 120, 140, 160
Number of Teeth
Determines speed ratio. Minimum 9 teeth recommended for smooth operation
Pitch Diameter (PD)
Calculated from ANSI standard geometry: PD = Pitch ÷ sin(π ÷ Teeth)
Bore
Fixed bore in inches/mm; or QD bushed for larger sizes
Hub Type
Type A (flat, no hub), Type B (one hub side), Type C (hub both sides)
Common Applications
- Chain-driven conveyors
- Industrial drive systems
- Agricultural equipment
- Hoist and lift drives
Frequently Asked Questions
How do I calculate sprocket speed ratio?
Speed ratio = Driver teeth ÷ Driven teeth. Driven RPM = Driver RPM × (Driver teeth ÷ Driven teeth). For precise transmission without slip — unlike belts, chain drives have a fixed ratio determined by tooth count.