Roscoe, IL (May 4, 2023) – Forest City Gear has expanded its capacity for the grinding of high precision internal and external gears with the addition of two Kellenberger K100 cylindrical grinders.

These machines will support the growing capabilities Forest City Gear offers customers with complex OD (outside diameter) and ID (inside diameter) grinding requirements. The first machine is a Universal capacity, with ID capability utilizing 1000mm capacity between centers for longer shafts or deep ID requirements. The Universal machine also has non-round grinding capability, making it ideal for grinding hexagonal and square gears as well with micron accuracy.

The second machine, 600mm between centers, is focused on cylindrical OD grinding. Both machines are fully equipped with auto part sizing equipment, active and passive flagging, and roll dressing capability.

“With the addition of these two machines, we are looking forward to having the capacity to improve throughout—along with the efficiency advantages that are found with such an upgrade,” said Jared Lyford, Director of Operations. “Forest City Gear is dedicated to investing in the best equipment with the most capabilities available, to consistently offer more value to our customers.”


Since 1955, Roscoe, IL based, family-owned Forest City Gear has been one of the gear industry’s leading sources for the development, manufacture, and inspection of the highest quality gears for use in applications that range from medical devices to motorcycles, airplanes to automation, including the Mars Perseverance Rover.