No matter how simple or complex the application, the gerotor's performance parameters are unmatched. It operates efficiently at flow rates ranging from a few cc/min. to more than 100 gallons/min.; at pressures ranging from vacuum to over 3000 psi. It lends itself superbly to applications as sophisticated as electronically controlled fuel pumps, as simple as low pressure oil transfer pumps and as demanding as high pressure hydraulic motors. Yet, gerotors have a lower installed cost, consume less power, use less space and have more applications flexibility than virtually all other pump/motor mechanisms. While we may make small sub assemblies, we do not manufacture stand alone pumps. This is because we do not wish to compete with our customers. Our focus is to provide a high quality component and a high level of technical assistance to our customers. This being said, we have the capability to design and test a complete pump for a given customer. Also, if you are looking for a complete gerotor pump, do not hesitate to contact us and we may be able to direct you to another Parker Division or one of our customers. A gerotor by itself represents a potential to perform a certain amount of work. How much work it can produce is based upon what it pumps and at what temperature. It also depends upon how it is packaged (i.e. clearances), the housing material, bearing system, speed, prime mover, etc. As we do not make pumps and therefore cannot control these items, it would be misleading to publish performance information related to any single gerotor. Nevertheless, we do design and test pumps in our Product Development Laboratory. We have the capability to "map" a given pump under a variety of conditions, and then provide you with this information. As the acknowledged leader in gerotor technology, we have been able to develop specific geometries to optimize rotor sets for specific environments or applications. In a custom designed gerotor, the tooth/lobe shape can be changed in order to achieve certain goals such as manufacturability, displacement density, low contact stress, etc. For more information related to this subject, see the software question below or contact our Product Engineering Department. It is important to note that we are NOT located in Portland Oregon! Nichols Portland is situated in Portland Maine, about 200 Km (125 miles) north of Boston on the East Coast of the U.S. The time zone is GMT -5. Because we engineer our gerotors for your specific application, it is best to work directly with our customers. Therefore, you can contact us here in Portland or at our sales office in Neuboerger Germany or Chonan-City, Korea. There is also a sales office in Troy Michigan. We export gerotors and other components to 20 countries, and have been quite effective at working with customers over great distances. These products are now manufactured by other divisions of Parker Hannifin. You can contact the Hydraulic Pump and Motor Division by calling 423-639-8151. You can also find additional information by going to the HPM Division web page. Double "A" pumps are now made by Haldex Hydraulics (www.haldex.com) Like most other companies in the world, we are "make-to-order." Nevertheless, we have some parts accessible for samples. What is on hand can vary, so please contact us directly regarding availability. The Gerotor embodies a design that outperforms and outlasts other fluid power and fluid transfer mechanisms over a broad range of applications. Its genius is simplicity its strength is versatility. Consisting of only two geometrically precise moving parts, the gerotor can handle virtually any flowing substance, from gasoline to hot melt glue. See Applications. Nichols Portland works with other Parker divisions and customers around the world. Based upon your requirements, we may be able to recommend a suitable partner for you. Please contact us for more information. Nichols Portland is the world's largest manufacturer of gerotors. With specialized powdered metal and metal cutting processes, dedicated CNC machinery and complete heat treating facilities. We can make a single custom gerotor - small lot quantities or millions of precise sets - all with strict adherence to quality standards, engineering specifications, costs and delivery schedules. While Nichols Portland has the capability to custom design a gerotor for a specific application, we also maintain the largest variety of standard gerotor geometries to be found anywhere. Parts can be purchase from our standard tools, and finished based on the application requirements. We can also produce a "hybrid," that is a standard gerotor with a custom drive configuration. Contact Nichols Product Engineering for more information. Gerotor geometry refers to the special shape of working surfaces, i.e. the tooth form of the inner rotor and the lobe form of the outer rotor. This is what makes a gerotor a gerotor. We know from experience that for a given application, a certain manufacturing process is necessary in order for the pump to function well. For example, an engine lubrication pump gerotor will perform properly with a minimal amount of secondary processing. However, a fuel pump gerotor requires much tighter tolerances and in some cases special material and heat treatment in order to meet performance criteria. It is also a fact that certain tooth/lobe forms may be better suited for a specific job than others. Therefore, when you work with Nichols, you can be certain that every effort will be made to match the best rotor form, material and manufacturing process to meet your specific application requirements. Nichols has the largest selection of standard rotor forms ("geometries") in the world and one of the largest variety of material and processing options to choose from. In other words, it is our aim that you will not have to spend money for something you don’t need. For more information related to this subject, contact our Product Engineering Department. We have obtained and tested the vast majority of the gerotor design software currently available. During the course of our evaluation we have found some features & aspects which are good. However, please be advised that none of the software being offered guides the user in determining what is a "good" gerotor versus what is a "bad" gerotor for a given application. We have also not seen anything which thoroughly addresses design for manufacture (DFM) issues, or power consumption for a specific gerotor displacement. By working with Nichols Portland you have access to the combined talents of our engineering and manufacturing personnel, as well as over 50 years experience in making gerotors of almost every conceivable size and shape. The vast majority of our sets are manufactured using powder metal (P/M) technology. We also employ conventional methods to make gerotors from wrought steel and cast iron. In addition we can fabricate parts from a variety of other ferrous and non ferrous materials. For more information related to this subject, contact our Product Engineering Department.