How to calculate your stud length for LEATL series?
How to calculate your stud length for LEATL series?
In order to calculate the stud length, first you'll need to select which receptacle you want to use.
There are the Clip- on receptacles and the Snap-in receptacles:
Snap-In = LEARS1020Z (type A) - LEARS2130Z (type B)
Clip-on = LEARC0856Z (type C) - LEARC0856D (type C)
According to which type of receptacle you want or can use, you need to use the dimension table in the catalogue:
Next you need to choose if you want to use a grommet or retaining washer.
Depending on which you select, you need to use the below drawing to calculate the total panel thickness:
Snap-In receptacle with retaining washer: T = P
Snap-In receptacle with grommet: T = P + 1.20
Clip-on receptacle with retaining washer: T = P + F + X - 0.8 (X = 0.8mm minimum)
Clip-on receptacle with grommet: T = P + F + X + 0.4 (X = 0.8mm minimum)
The grommet part numbers are:
LEAG000160 - LEAG170280 - LEAG290400 - LEAG410530 - LEAG540665
Each grommet can be used for a specific panel thickness, more information in the links.
There are 4 types of retaining washers as well:
After selecting the receptacle, which retaining washer you wish to use, you just need to select the head style of the stud.
Then you're ready to calculate the stud length.
For example:
You wish to use the Type A receptacle LEARS1020Z and a slotted head stud, with a grommet, and you have a panel thickness of 2.7mm and a frame thickness of 1.2mm.
That means you need to use grommet LEAG170280, and the stud length formula you need is:
T = P + 1.2 = 2.7 + 1.2 = 3.9
Since we're using the type A receptacle, you need to use the first column and you arrive at stud length 10 which is used for a T value between 3.50 and 4.10.
So you'll need this assembly:
Stud = LEATLS-10Z
Grommet = LEAG170280
Receptacle = LEARS1020Z
If you'd prefer to use a retaining washer MHSWPS instead of the grommet, you need to use formula:
T = P = 2.7 , which results in stud length 8 which is used between T value 2.30 and 2.90
This results in the following part numbers:
Stud = LEATLS-8Z
Retaining washer = MHSWPS
Receptacle = LEARS1020Z
Note: you can use either the retaining washer or the grommet to hold the stud in place when the assembly is opened.
Do not use them together.