Eaton Airflex incorporates helpful information within their model numbers and part numbers, but what information is included?
Before we go further, make sure to check out our previous blog, which breaks down the model numbers for the CB & VC series. The Eaton Airflex CB & VC series are the most popular models within their offering of constricting air-actuated clutches and brakes. This blog will break down the part numbers, often referred to as the assembly numbers, for the CB & VC elements.
The part number is found on a sticker on the element. First, let's explore what a spec tag from a 14CB400 element tells us.
The part number is 142087JB. You can also find this part number on the literature that came with the element or potentially in a piece of OEM literature. Let’s use this part number 142087JB as an example to break down. The first six digits are a given element model number’s primary part number. So, if your element’s part number begins with 142087, you know that it’s a 14CB400. This rule also applies to the VC series elements. The first six digits are all numerical and are the basic part number that refers to the model of the element.
Below are tables that list all of the basic element part numbers for the CB & VC series with the corresponding model number.
| Model Number - - - - | Single Element Basic P/N - - - - | Dual Element Basic P/N - - - - |
| 3CB150 | 142252 | |
| 4CB200 | 142840 | |
| 5CB200 | 142253 | |
| 6CB200 | 142095 | |
| 8CB250 | 142096 | |
| 10CB300 | 142197 | |
| 12CB350 | 142098 | 142731 |
| 14CB400 | 142087 | 142604 |
| 12CB350 | 142098 | 142432 |
| 14CB400 | 142087 | 142433 |
| 16CB500 | 142211 | 142434 |
| 18CB500 | 142264 | 142435 |
| 20CB500 | 142265 | 142436 |
| 22CB500 | 142266 | 142437 |
| 24CB500 | 142267 | 142438 |
| 26CB525 | 142268 | 142439 |
| 28CB525 | 142269 | 142440 |
| 30CB525 | 142270 | 142441 |
| 32CB525 | 142271 | 142442 |
| 36CB525 | 142272 | 142443 |
| 40CB525 | 142273 | |
| 45CB525 | 142081 |
| Model Number - - - - | Single Element Basic P/N - - - - | Dual Element Basic P/N - - - - |
| 11.5VC500 | 142639 | 142112 |
| 14VC500 | 143829 | 142114 |
| 16VC600 | 142640 | 142115 |
| 20VC600 | 142641 | 142116 |
| 24VC650 | 142642 | 142117 |
| 28VC650 | 142643 | 142118 |
| 33VC650 | 142644 | 142119 |
| 37VC650 | 142645 | 142120 |
| 42VC650 | 142647 | 142121 |
| Model Number - - - - | Single Element Basic P/N - - - - | Dual Element Basic P/N - - - - |
| 14VC1000 | 142838 | |
| 16VC1000 | 142821 | 142122 |
| 20VC1000 | 142832 | 142123 |
| 24VC1000 | 142675 | 142124 |
| 28VC1000 | 142674 | 142125 |
| 32VC1000 | 142673 | 142126 |
| 38VC1200 | 142739 | 142127 |
| 42VC1200 | 142677 | 142128 |
| 46VC1200 | 142671 | 142129 |
| 52VC1200 | 142841 | 142131 |
| 51VC1600 | 142835 | 142130 |
| 60VC1600 | 142915 | 142132 |
| 66VC1600 | 142097 | 142198 |
| 76VC1600 | 146509 | |
| 76VC2000 | 146531 |
The last two digits are known as the suffix of the part number and will always be alphabetical. In this part number of 142087JB, the “JB” is the suffix and will tell us the configuration of the element.
In the CB series, the first configuration option is the type of friction lining used on the friction shoes. The main two options are standard friction linings or high coefficient (HI-CO) friction linings which are oftentimes referred to as cork friction linings. The next configuration option is the style of rim. The main options are standard, slotted, or dual drilled. The last configuration option will be the number of air inlets and what type of air connection was supplied. The number of air inlets can be 1, 2, or 4 and the type of air connections are elbow assemblies, quick release valves, or the element was sold less the air connection.
For the VC series, all of the configuration options are the same as the CB series, except there is no configuration option for the style of rim. They all come as a standard rim.
In our example of 142087JB, the “JB” indicates that this 14CB400 has standard friction shoe linings, a standard rim, and one air inlet with an elbow-style air connection. The below tables display the different suffix options and the corresponding configuration options that they represent. Note that this full list of suffix codes is not available for each model number. Typically, a model number will have 6 to 11 different suffix code options.
| Suffix Code - - - - | No. of Air Inlets - - - - | Type of Friction Lining - - - - | Style of Rim - - - - | Type of Air Connection - - - - |
| JA | 1 | Standard | Standard | Less Air Connection |
| JB | 1 | Standard | Standard | Elbows |
| JC | 1 | Standard | Slotted | Less Air Connection |
| JT | 1 | Cork | Standard | Less Air Connection |
| JN | 1 | Cork | Standard | Elbows |
| JU | 1 | Cork | Slotted | Less Air Connection |
| JH | 2 | Standard | Standard | Less Air Connection |
| JG | 2 | Standard | Standard | Elbows |
| JK | 2 | Standard | Slotted | Less Air Connection |
| JQ | 2 | Cork | Standard | Elbows |
| KY | 1 | Standard | Standard | Less Air Connection |
| KM | 1 | Standard | Standard | Elbows |
| KN | 1 | Standard | Standard | QRV's |
| KS | 1 | Standard | Dual Drilled | Less Air Connection |
| LH | 1 | Standard | Dual Drilled | Elbows |
| LJ | 1 | Standard | Dual Drilled | QRV's |
| LQ | 1 | Cork | Standard | Less Air Connection |
| MG | 1 | Cork | Standard | Elbows |
| LA | 1 | Cork | Standard | QRV's |
| LR | 1 | Cork | Dual Drilled | Less Air Connection |
| LX | 2 | Standard | Standard | Less Air Connection |
| LB | 2 | Standard | Standard | Elbows |
| LK | 2 | Standard | Standard | QRV's |
| MT | 2 | Standard | Dual Drilled | Less Air Connection |
| LW | 2 | Standard | Standard | QRV's |
| KD | 2 | Cork | Standard | Less Air Connection |
| KE | 2 | Cork | Standard | Elbows |
| LY | 2 | Cork | Dual Drilled | Less Air Connection |
| KL | 2 | Cork | Dual Drilled | Elbows |
| KZ | 4 | Standard | Standard | Less Air Connection |
| KP | 4 | Standard | Standard | Elbows |
| KR | 4 | Standard | Standard | QRV's |
| LS | 4 | Standard | Dual Drilled | Less Air Connection |
| KT | 4 | Standard | Dual Drilled | Elbows |
| KU | 4 | Standard | Dual Drilled | QRV's |
| NR | 4 | Cork | Standard | Less Air Connection |
| LV | 4 | Cork | Standard | Elbows |
| ML | 4 | Cork | Standard | QRV's |
| LT | 4 | Cork | Dual Drilled | Less Air Connection |
| LU | 4 | Cork | Dual Drilled | Elbows |
| NE | 4 | Cork | Dual Drilled | QRV's |
| Suffix Code - - - - | No. of Air Inlets - - - - | Type of Friction Lining - - - - | Type of Air Connection - - - - |
| DA | 2 | Standard | Elbows |
| DD | 2 | Standard | QRV's |
| DF | 2 | Cork | Elbows |
| DJ | 2 | Cork | QRV's |
| DK | 4 | Standard | Elbows |
| DL | 4 | Standard | QRV's |
| DT | 4 | Cork | Elbows |
| Suffix Code - - - - | No. of Air Inlets - - - - | Type of Friction Lining - - - - | Type of Air Connection - - - - |
| HJ | 1 | Standard | Elbows |
| HM | 1 | Standard | QRV's |
| LR | 1 | Cork | Elbows |
| MR | 1 | Cork | QRV's |
| HA | 1, 2, or 4 | Standard | Less Air Connection |
| HP | 2 | Standard | Elbows |
| HN | 2 | Standard | QRV's |
| HB | 1, 2, or 4 | Cork | Less Air Connection |
| HS | 2 | Cork | Elbows |
| HK | 2 | Cork | QRV's |
| HC | Standard | Elbows | |
| HE | Standard | QRV's | |
| HD | Cork | Elbows | |
| HF | Cork | QRV's |
| Suffix Code - - - - | No. of Air Inlets - - - - | Type of Friction Lining - - - - | Type of Air Connection - - - - |
| E | 2 | Standard | QRV's |
| AA | 2 or 4 | Cork | Less Air Connection |
| A | 2 | Cork | Elbows |
| AK | 2 | Cork | QRV's |
| F | 4 | Standard | Less Air Connection |
| C | 4 | Standard | Elbows |
| D | 4 | Standard | QRV's |
| X | 4 | Cork | Elbows |
| J | 4 | Cork | QRV's |
There is quite a bit of information that is right at your fingertips within the Eaton Airflex part number that is beneficial in various scenarios to help you better and more efficiently maintain your Eaton element. For example, we often see the spec tag sticker is partially removed, or only a portion of it is readable. But you can still determine the model and size of your element without taking a single measurement by using the info left to pull out the basic part number to determine the element’s model number.
This information is helpful when you need to order replacement parts. Without having to track down a parts list, you can determine the style of air connection used on your element along with the quantity. This is super helpful as those air connections are a serviceable item that is often replaced when routine maintenance. You will also be able to determine the type of friction lining, which will be helpful if you ever need to replace the friction shoe assemblies.
Our parts team is available to help identify the correct style of the replacement item. In the case of the air connections, you will know the quantity needed without going out and visually verifying the piece of equipment. This all adds up to a deeper understanding of your Eaton Airflex VC or CB series element and will save you time in the long run.
Check out our other Eaton Airflex tech blog articles in our blog page’s “Tech Corner” category. If you have any further questions or want additional literature on your Eaton air brake or Eaton air clutch, contact the experts at Palmer Johnson. We have a whole staff of knowledgeable sales reps and technical support advisors that can answer any troubleshooting-related question you may have and also locate the needed parts to get you back up and running fast. Contact us today!
