BlackStar 50BS42 3/4 K2S - 50 Pitch Finished Bore Sprocket - 42 Tooth - 3/4" Bore TL1310 16T10/810R has a 10 mm

16T10/810R has a 10 mm tooth pitch

The Gates AK49

and Jason Industrial 17/B180

The 5VX850 has a 5/8" width

Specifications Part Number 100A45R Chain Pitch 100 Number of Teeth 45 Bore Type Plain Bore Hub Style A-Plate Strand Count Single Material Steel Outside Diameter 18

BlackStar 50BS42 3/4 K2S - 50 Pitch Finished Bore Sprocket - 42 Tooth - 3/4" Bore TL1310 16T10/810R has a 10 mmThe BlackStar 50BS42 3 4 K2S is a 50 pitch Finished Bore roller chain sprocket with 42 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 3 4" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number 50BS42 3 4 K2S Chain Pitch 50 Number of Teeth 42 Bore Size 3 4" Minimum Bore 3 4" Maximum Bore 1 15 16" Bore Type