Xtek, Inc. (Cincinnati, OH), heat treats and manufactures a number of wheel and mill roll products as well as spur, helical, herringbone and bevel gears for various applications.  Among the most challenging

Oliver Gear, Inc. (Buffalo, NY), flame-hardens the flanks of large gear teeth to a depth of 0.125 inches on the pitch line without hardening the gear hub.  The gears, weighing from 80

Rexnord Corporation (Horsham, PA), manufactures industrial power transmission products.  The firm used a Cincinnati Flamatic flame hardening system to harden worm gears for speed reducers.  When production of the Flamatic units was