BlackStar 140R18 - 140 Pitch R Sprocket - 18 Tooth T20 Section The 6/5VX500 has a 5/8"

The 6/5VX500 has a 5/8" width

Housing Style Take-Up Unit Housing Material Cast Iron Part Number ST215

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Is 16/B91 the same as other brands' 16/B91

BlackStar 140R18 - 140 Pitch R Sprocket - 18 Tooth T20 Section The 6/5VX500 has a 5/8"The BlackStar 140R18 is a 140 pitch R roller chain sprocket with 18 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. Requires a Split Taper Bushing (sold separately). Specifications Part Number 140R18 Chain Pitch 140 Number of Teeth 18 Bore Type Plain Bore Hub Style R Strand Count Single Material Steel Outside Diameter 10. 97" Pitch Diameter 10. 078" Approx. Weight 20. 500