BlackStar 40BS58 7/8 K2S - 40 Pitch Finished Bore Sprocket - 58 Tooth - 7/8" Bore XH Section so the 7/C136 interchanges with

so the 7/C136 interchanges with Gates 7/C136

so a 1210-5M-09 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

Does 250-S4

Bore Size 1-3/16" Insert Series SER Shaft Attachment Set Screw Bearing Type Ball Bearing Dynamic Load Rating 4

BlackStar 40BS58 7/8 K2S - 40 Pitch Finished Bore Sprocket - 58 Tooth - 7/8" Bore XH Section so the 7/C136 interchanges withThe BlackStar 40BS58 7 8 K2S is a 40 pitch Finished Bore roller chain sprocket with 58 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 40BS58 7 8 K2S Chain Pitch 40 Number of Teeth 58 Bore Size 7 8" Minimum Bore 5 8" Maximum Bore 1 1 2" Bore Type