Determining brake pad wear

[Turbobrick]

Here's a pic to explain.

 

My brick does not have a brake wear indicator so I usually take a look and compare the pad vs the backing plate thickness. Once the pad is wearing below the backing plate thickness, time to consider a brake pad change.

 

Yeap! I'm using Mintex

Edited February 14, 2002 by Turbobrick

[Myfocus]

just curious, how did you arrive at the criteria?

 

normally the criteria is a certain thickness, no? Or have I forgotten so much of my materials stuff......

 

Here's a pic to explain.

 

My brick does not have a brake wear indicator so I usually take a look and compare the pad vs the backing plate thickness. Once the pad is wearing below the backing plate thickness, time to consider a brake pad change.

 

Yeap! I'm using Mintex

[Turbobrick]

Well, my brick's brake pad wear limit spec is 3mm and the backing plate is 5mm so but rough estimation any wear below the backing plate thickness calls for a pad change soon.

 

I also notice many cars with the backing plate thickness about half or less than the friction material thickness when new so just estimation without requiring the pad removal or metal to metal contact.

[Myfocus]

Ok, that rough correlation makes sense. I thought there was some more chim stuff about thickness, shear strength vs thickness, peel vs shear forces at the pad material and backing plate interface.

 

Well, my brick's brake pad wear limit spec is 3mm and the backing plate is 5mm so but rough estimation any wear below the backing plate thickness calls for a pad change soon.