BlackStar 50BS42 1 1/2 K2S - 50 Pitch Finished Bore Sprocket - 42 Tooth - 1-1/2" Bore BB Section "text": "The 3/3V900 is used

"text": "The 3/3V900 is used for high-shock and high-vibration drives

2600-P8M-50 Timing Belt

12/CK81 is a standardized industry size

The D&D Global 1075K5 is a Micro-V (multi-ribbed) belt with Micro-V ribbed K-section dimensions

BlackStar 50BS42 1 1/2 K2S - 50 Pitch Finished Bore Sprocket - 42 Tooth - 1-1/2" Bore BB Section "text": "The 3/3V900 is usedThe BlackStar 50BS42 1 1 2 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 1 1 2" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number 50BS42 1 1 2 K2S Chain Pitch 50 Number of Teeth 42 Bore Size 1 1 2" Minimum Bore 3 4" Maximum Bore 1 15 16"