Sprocket Wheel Set Product Type Sprocket Wheel Set Chain Number 40 Bearing Type Ball For Number of Strands Single For Chain Pitch 1/2 in Idler Bolt Thread Size M10 Idler Hole System of Measurement Metric Length through Bore 9 mm Number of Sprockets 1 Number of Teeth 15 Sprocket Width 9 mm Standards ANSI DIN 8187 ISO 08 B-1 Bearing Closure Double Shielded Bore Diameter 10 mm Compatible with Brand Rosta Compatible with Grainger Part Number 798K94