Sunnen Products Company

7910 Manchester Rd.
St. Louis, MO 63143
Phone: (314) 781-2100
Fax: (314) 781-2268


Sunnen is the worldwide technological leader for the high precision honing of all types of gears, including helical, pinion, worm, spline, sprocket, and spur gears. The Sunnen solution generates gear tooth profiles from a more accurate bore, resulting in smoother, quieter running gears that can transfer more power.