https://catalog.tsubaki.ca/item/double-single-standard-bore-sprockets/40-double-single-sprockets/ds40a24
Item # DS40A24, 40 Double Single Sprockets On Tsubaki of Canada Limited
No. 40 double-single standard bore sprockets provide compact solutions for flexible strand configurations in light-duty chain drives.
single sprocketsitemdouble
https://agricultural-gearbox.en.made-in-china.com/product/bdITiqLDXlVa/China-European-Standard-Series-06b-08b-10b-12b-16b-Double-Simplex-Roller-Chain-Sprockets-for-Two-Single-Chains.html
European Standard Series 06b 08b 10b 12b 16b Double Simplex Roller Chain Sprockets for Two Single...
European Standard Series 06b 08b 10b 12b 16b Double Simplex Roller Chain Sprockets for Two Single Chains, Find Details and Price about Sprocket Transmission...