Bolt circle definition
Bolt circle definition
(OP)
Hi,
I am developing anew heavy commercial wheel family that has a new rim specifications and lower load index. By the new LI, lower, the new wheel family can not use same bolt circle and bolt pattern due to security.
The proposal is to keep bolt circle and change the number of bolts, but my question is: there is a way to calculate structural strength of wheel bolt? What is the considerations? I do not want use CAE methods now because it is under study and I need to investigate a lot of proposals.
Thank you,
Edcsd.
I am developing anew heavy commercial wheel family that has a new rim specifications and lower load index. By the new LI, lower, the new wheel family can not use same bolt circle and bolt pattern due to security.
The proposal is to keep bolt circle and change the number of bolts, but my question is: there is a way to calculate structural strength of wheel bolt? What is the considerations? I do not want use CAE methods now because it is under study and I need to investigate a lot of proposals.
Thank you,
Edcsd.





RE: Bolt circle definition
So I think you need to define what vehicles the wheel is going to be designed for - and that would also define the load carrying capacity - and then match what the vehicle's bolt circle is.
RE: Bolt circle definition
Tim Flater
NX Designer
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RE: Bolt circle definition
Imagine one wheel 17,5 x 6,75 - 6 holes 143/141 K. I want to develop a new wheel with same characteristics changing only the number of bolt, 17,5 x 6,75 - 5 holes 143/141 K.
How may I get sure that 5 hole could carry the same load without use CAE method? Thank you.
RE: Bolt circle definition
The vehicle determines what wheel fits on it, not the other way around.
One of the purposes of the difference number of lugs is to prevent using a lower load rated wheel - and while you aren't trying to do that, what you are doing makes no sense, because the GVW of the vehicle is the limiting factor.