BlackStar 4 SC - Solid Collar - 4" Bore 1.3/16" "name":"Gates 15/B210 Hi-Power II PowerBand

"name":"Gates 15/B210 Hi-Power II PowerBand V-Belts 909315210"

so the Megadyne 2/C195 interchanges with Gates

"mpn":"TB072053253719"

"name":"D&D Global 323J14 Micro-V Serpentine Belt — J Section

The BlackStar 2-3V235JA STL is a 2-groove qd sheave for 3V-section belts

BlackStar 4 SC - Solid Collar - 4" Bore 1.3/16" "name":"Gates 15/B210 Hi-Power II PowerBandThe BlackStar 4 SC is a solid collar, manufactured from steel. Features a 4" bore for direct shaft mounting. Solid set collars are the simplest shaft accessory, used to position bearings, gears, sprockets, and other components on shafts. The set screw bites directly into the shaft to hold position. Common in conveyors, agriculture equipment, and general industrial machinery. Specifications Part Number 4 SC Product Type Solid Collar Bore Size 4"