Clyde Bergemann L-289348 Timing Belt Pulley Sheave 3/4" Belt 90-Tooth

New old stock from spare parts storage.  Has some shelf wear.
36 threaded mounting holes. 3/8"-16. 6-1/2" circle.
4 threaded mounting holes. 3/8"-16. 5-1/2" circle.
90 tooth, 60mm bore, 3/4" belt
Might also be called Gear, Sprocket, Flywheel.