BlackStar 50BS35 3/4 K2S - 50 Pitch Finished Bore Sprocket - 35 Tooth - 3/4" Bore Modified Curvilinear The 17/B300 has a 21/32"

The 17/B300 has a 21/32" width

The Gates 1626V384 Multi-Speed Belts is a standard V-belt featuring V-section dimensions

The 3/8VK2240 is a banded v-belt from D&D Global's Dura-Ultimate Band Wedge - 8Vk Series line

0 mm Tooth Profile Trapezoidal Tooth Location Single Side Number of Teeth 148 Width 30mm Length 1480 mm Material Polyurethane Reinforcement Steel Cord Color White/Gray Temperature Range -20°F to 158°F

so a 3/B87 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

BlackStar 50BS35 3/4 K2S - 50 Pitch Finished Bore Sprocket - 35 Tooth - 3/4" Bore Modified Curvilinear The 17/B300 has a 21/32"The BlackStar 50BS35 3 4 K2S is a 50 pitch Finished Bore roller chain sprocket with 35 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 50BS35 3 4 K2S Chain Pitch 50 Number of Teeth 35 Bore Size 3 4" Minimum Bore 3 4" Maximum Bore 1 15 16" Bore Type