Custom Drive Wheel for 1"x30" [15mm Bore]

Wheel is machined aluminum center section with 15mm bore and set screw.  It is designed to work with DC sewing machine motor upgrades and will not work with the stock 1x30 machine AC motor. 
It will work with tookler and vevor type DC motors that have the 15mm motor shaft.
Dimensions are 1" wide by 4" diameter.
Rubber outer is firm 60 on scale and has very slight give.