Sprocket Wheel Set Product Type Sprocket Wheel Set Chain Number 120 Bearing Type Ball For Number of Strands Single For Chain Pitch 1 1/2 in Idler Bolt Thread Size M20 Idler Hole System of Measurement Metric Length through Bore 15 mm Number of Sprockets 1 Number of Teeth 11 Sprocket Width 15 mm Standards ANSI DIN 8187 ISO 24 B-1 Bearing Closure Double Shielded Bore Diameter 20 mm Compatible with Brand Rosta Compatible with Grainger Part Number 798K96 798K97