How to Read Dodge Codes and Designations

When you need to replace a bearing, a housing, or a pulley, the code is the key to finding the exact replacement. Dodge uses a designation system that, while it may seem complex at first, follows clear and consistent rules. Understanding it saves you time and avoids costly mistakes.

In this guide, we explain how Dodge codes are structured, what the most common prefixes and suffixes mean, and show you real examples of products we sell at MR Accesorios Industriales. This way you can identify the part you need and request an accurate quote.

A typical Dodge code combines letters and numbers that indicate the product type, series, size, and sometimes special features. For example, in insert bearing housings, the prefix TB identifies the two-bolt housing line, while GT refers to the insert bearing series with certain design characteristics.

For pulleys, codes like MA usually correspond to variable pitch or certain construction type pulleys, followed by a number indicating diameter or size. Reducers, on the other hand, use names like Maxum XTR followed by a number indicating the reducer size.

Taper bushings, such as WA or numeric ones like 3535, have their own logic: letters indicate the bushing type and numbers indicate the shaft and bore size. Knowing this structure allows you to interpret any code.

In insert bearings (also called Y-bearings), codes like INS-GT-09 combine the prefix INS (insert) with the series GT and a number indicating the shaft diameter in sixteenths of an inch. For example, 09 corresponds to a 9/16 inch shaft.

Insert bearing housings, such as TB-GT-04, follow the same logic: TB indicates the housing type (two-bolt), GT the bearing series, and 04 the shaft diameter (4/16 = 1/4 inch). This nomenclature is standard in the industry and facilitates identification.

Sometimes suffixes are added to indicate special seals, such as 2RS (double rubber seal) or C3 (larger internal clearance). These suffixes are common in bearings and also apply to Dodge inserts, although they do not always appear in the base code.

Let's look at some concrete examples of products we sell. The code TB-GT-04 corresponds to a Y-housing with insert bearing for a 1/4 inch shaft. TB-GT-09 is for a 9/16 inch shaft, and TB-GT-10 for a 5/8 inch shaft.

In pulleys, MA98, MA24, and MA60 are examples of pulleys of different sizes. In reducers, Maxum XTR 70, Maxum XTR 60, and Maxum XTR 80 indicate different sizes within the same line.

For taper bushings, WA70, WA30, and 3535 are typical codes. In insert bearings, INS-GT-09, INS-GT-05, and INS-GT-04 show the same logic of shaft diameter in sixteenths.

In many Dodge codes, especially in housings and insert bearings, the final number indicates the shaft diameter in sixteenths of an inch. For example, 04 = 4/16 = 1/4 inch, 05 = 5/16, 09 = 9/16, 10 = 10/16 = 5/8, and so on.

This convention is very useful because it allows you to quickly know if the product fits your shaft without needing tables. You just have to divide the number by 16 to get the diameter in inches, or convert it to millimeters if you work in the metric system.

In pulleys and reducers, the number does not always follow this rule; sometimes it indicates the nominal size or capacity. That's why it's important to consult the catalog or ask for advice to confirm exact dimensions.

Dodge organizes its products into series and lines that are reflected in the codes. For example, the GT series in insert bearings is characterized by its high-capacity design and effective seal. Other series may have different prefixes, such as INS for inserts or TB for two-bolt housings.

In reducers, the Maxum XTR line stands out for its robust construction and design for demanding applications. The numbers 60, 70, and 80 indicate increasing sizes, but they are not direct shaft measurements.

Knowing these differences helps you choose the correct replacement and communicate better with your supplier. If you have doubts, at MR Accesorios Industriales we help you identify the exact code for your application.

To get a quote for a Dodge product, it's best to send us the complete code as it appears on the part or on the identification plate. If you don't have it, a clear photo of the part and the main measurements (shaft diameter, external dimensions) allow us to identify it.

It's also helpful to indicate the application or the equipment where the part is mounted, as there are sometimes variants depending on the working environment. With that information, we quote the exact replacement or indicate the compatible alternative.

You can write to us via WhatsApp or email with the code, measurement, or a photo of the part. We respond promptly with the quote and the technical information you need.