Parts:
Boston Gear PLB3060SF09-5/16 Timing Pulley, 3 mm Pitch, 60 Grooves, 9mm Wide Belts, 0.313″ Bore Diameter, 2.226″ Outside Diameter, 0.813″ Overall Length, Lexan with Aluminum Insert, Single Flange
-Fiberglass-reinforced polycarbonate resin thermoplastic for light weight and low noise
-Stock bore with 0.313″ diameter does not require use of a bushing
Link to Amazon product page
The Only problem we had with this pulley is that it has a 0.313″(7.9502mm) Bore Diameter. Although it was the closest in size to the servo motor’s 8mm shaft, the shaft would not fit in. So, we used a drill to enlarge the bore diameter. This shaft is much lighter in weight than pulley made of steel, and so far it hasn’t had any problems handling the torque.
Image showing total weight of the system 3.31Kg(Including backpack, arm brace, battery and electronics)
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