BlackStar 50BS45 7/8 K2S - 50 Pitch Finished Bore Sprocket - 45 Tooth - 7/8" Bore AT10US so the SPZ1024 interchanges with

so the SPZ1024 interchanges with Gates SPZ1024

"name":"D&D Global 14T10/460US Timing Belt — T10 Section

The Gates P12-3M-06AL PowerGrip HTD Sprockets is a timing belt sprocket

"mpn":"TB072053890921"

BlackStar 50BS45 7/8 K2S - 50 Pitch Finished Bore Sprocket - 45 Tooth - 7/8" Bore AT10US so the SPZ1024 interchanges withThe BlackStar 50BS45 7 8 K2S is a 50 pitch Finished Bore roller chain sprocket with 45 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 7 8" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number 50BS45 7 8 K2S Chain Pitch 50 Number of Teeth 45 Bore Size 7 8" Minimum Bore 3 4" Maximum Bore 1 15 16" Bore Type