Poly-V pulley
FIG. 1 is a top plan view of a poly-V-pulley showing my design with an external dust cover in place; 
     FIG. 2 is a bottom plan view thereof, with the dust cover in place; 
     FIG. 3 is a side elevational view thereof, being partially broken away and shown in section to illustrate interior surface contours, the pulley being axially symmetrical, and with the dust cover in place; 
     FIG. 4 is a top perspective view thereof, the dust cover being omitted; and 
     FIG. 5 is a top perspective view thereof, including showing of the dust cover. 
     A side elevation of the alternative embodiment shown in FIGS. 4 and 5 is the same as the side elevation shown in FIG. 3.