BlackStar H08B21 - British Standard Sprocket - #08 Pitch 21 Tooth AT10R 16T5/765US is a standardized industry

16T5/765US is a standardized industry size

"text": "1073K8 has 8 ribs

so a 1422V466 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

Cross-references: Browning 3-5V465SDS

BlackStar H08B21 - British Standard Sprocket - #08 Pitch 21 Tooth AT10R 16T5/765US is a standardized industryThe BlackStar H08B21 is a British Standard #08 pitch B Hub roller chain sprocket with 21 teeth, manufactured from steel. British Standard sprockets meet ISO 606 specifications for chain drives in metric and imperial European applications. Plain bore design finish to required shaft size during installation. Specifications Part Number H08B21 Product Type British Standard Sprocket Standard ISO 606 British Standard #08 Chain Pitch #08 Hub Style B Hub