BlackStar 5-5V490SD STL - QD Sheave 3.1/8" The Continental O-140S-M SilentSync Sprocket

The Continental O-140S-M SilentSync Sprocket is a timing belt sprocket from Continental

The BlackStar M 3 3/16 is a M series qd bushing with a 3 3/16" finished bore

The 17/3VX600 is used for high-shock and high-vibration drives

and a 1248 mm (Pitch Length)

BlackStar 5-5V490SD STL - QD Sheave 3.1/8" The Continental O-140S-M SilentSync SprocketThe BlackStar 5 5V490SD STL is a 5 groove qd sheave for 5V section belts, manufactured from cast iron. Requires a QD Type SD Bushing (sold separately). Specifications Part Number 5 5V490SD STL Product Type QD Sheave Number of Grooves 5 Belt Profile 5V Outside Diameter 4. 90" Bushing Required QD Type SD Bushing Material Cast Iron Approx. Weight 11. 100 lbs Pitch Diameter 49. 0" Compatible Belts 5V Bushing Required This sheave requires a QD Type SD