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Eaton Airflex CB & VC Element Part Numbers Explained

14 CB400 Spec Sticker Example

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.

Single & Dual Eaton Airflex CB Series Elements:

Model Number - - - -Single Element Basic P/N - - - -Dual Element Basic P/N - - - -
3CB150142252
4CB200142840
5CB200142253
6CB200142095
8CB250142096
10CB300142197
12CB350142098142731
14CB400142087142604
12CB350142098142432
14CB400142087142433
16CB500142211142434
18CB500142264142435
20CB500142265142436
22CB500142266142437
24CB500142267142438
26CB525142268142439
28CB525142269142440
30CB525142270142441
32CB525142271142442
36CB525142272142443
40CB525142273
45CB525142081

Single & Dual Eaton Airflex VC Narrow Series Elements

Model Number - - - -Single Element Basic P/N - - - -Dual Element Basic P/N - - - -
11.5VC500142639142112
14VC500143829142114
16VC600142640142115
20VC600142641142116
24VC650142642142117
28VC650142643142118
33VC650142644142119
37VC650142645142120
42VC650142647142121

Single & Dual Eaton Airflex VC Series Elements:

Model Number - - - -Single Element Basic P/N - - - -Dual Element Basic P/N - - - -
14VC1000142838
16VC1000142821142122
20VC1000142832142123
24VC1000142675142124
28VC1000142674142125
32VC1000142673142126
38VC1200142739142127
42VC1200142677142128
46VC1200142671142129
52VC1200142841142131
51VC1600142835142130
60VC1600142915142132
66VC1600142097142198
76VC1600146509
76VC2000146531


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.

Eaton Airflex Single CB Element Suffix Codes:

Suffix Code - - - -No. of Air Inlets - - - -Type of Friction Lining - - - -Style of Rim - - - -Type of Air Connection - - - -
JA1StandardStandardLess Air Connection
JB1StandardStandardElbows
JC1StandardSlottedLess Air Connection
JT1CorkStandardLess Air Connection
JN1CorkStandardElbows
JU1CorkSlottedLess Air Connection
JH2StandardStandardLess Air Connection
JG2StandardStandardElbows
JK2StandardSlottedLess Air Connection
JQ2CorkStandardElbows
KY1StandardStandardLess Air Connection
KM1StandardStandardElbows
KN1StandardStandardQRV's
KS1StandardDual DrilledLess Air Connection
LH1StandardDual DrilledElbows
LJ1StandardDual DrilledQRV's
LQ1CorkStandardLess Air Connection
MG1CorkStandardElbows
LA1CorkStandardQRV's
LR1CorkDual DrilledLess Air Connection
LX2StandardStandardLess Air Connection
LB2StandardStandardElbows
LK2StandardStandardQRV's
MT2StandardDual DrilledLess Air Connection
LW2StandardStandardQRV's
KD2CorkStandardLess Air Connection
KE2CorkStandardElbows
LY2CorkDual DrilledLess Air Connection
KL2CorkDual DrilledElbows
KZ4StandardStandardLess Air Connection
KP4StandardStandardElbows
KR4StandardStandardQRV's
LS4StandardDual DrilledLess Air Connection
KT4StandardDual DrilledElbows
KU4StandardDual DrilledQRV's
NR4CorkStandardLess Air Connection
LV4CorkStandardElbows
ML4CorkStandardQRV's
LT4CorkDual DrilledLess Air Connection
LU4CorkDual DrilledElbows
NE4CorkDual DrilledQRV's

Eaton Airflex Dual CB Element Suffix Codes:

Suffix Code - - - -No. of Air Inlets - - - -Type of Friction Lining - - - -Type of Air Connection - - - -
DA2StandardElbows
DD2StandardQRV's
DF2CorkElbows
DJ2CorkQRV's
DK4StandardElbows
DL4StandardQRV's
DT4CorkElbows

Eaton Airflex Single VC Element Suffix Codes:

Suffix Code - - - -No. of Air Inlets - - - -Type of Friction Lining - - - -Type of Air Connection - - - -
HJ1StandardElbows
HM1StandardQRV's
LR1CorkElbows
MR1CorkQRV's
HA1, 2, or 4StandardLess Air Connection
HP2StandardElbows
HN2StandardQRV's
HB1, 2, or 4CorkLess Air Connection
HS2CorkElbows
HK2CorkQRV's
HCStandardElbows
HEStandardQRV's
HDCorkElbows
HFCorkQRV's

Eaton Airflex Single VC Element Suffix Codes:

Suffix Code - - - -No. of Air Inlets - - - -Type of Friction Lining - - - -Type of Air Connection - - - -
E2StandardQRV's
AA2 or 4CorkLess Air Connection
A2CorkElbows
AK2CorkQRV's
F4StandardLess Air Connection
C4StandardElbows
D4StandardQRV's
X4CorkElbows
J4CorkQRV'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!


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