Case Studies


This design was created for a customer that required a gear box with two coaxial, counter-rotating shafts for a special purpose machine system.

The input power was a 20HP electric motor running at 1800 rpm. The two outputs, one a shaft and one a flange, were designed to handle 12.5 hp each continuously.

Click for a drawing of the Coaxial Gear Box


This gear was used in an airport crash rescue truck to drive the main pumping system. It transmitted 385 HP @ 2700 RPM taken from a turbocharged GM 6-71 diesel engine driving an Allison heavy duty automatic transmission.

The center bore has a Stoffle Polygon profile to provide adequate torque transmission capability. The gear was 6 Diametral Pitch, AGMA Gr. 12, 1.250 in. face width and made from alloy steel with hardened and ground teeth.

Pump Gear

Pump Gear

Call or email your manufacturing requirements. You will find that we are very responsive, creative and knowledgeable about automated manufacturing systems, custom machine parts and the technology of gearing.

Robert B. Price, C.Mfg.E.
Manufacturing Engineering Consultant

360 Craven Road, Delanson, New York 12053-2139
Phone (518)895-8954 Email