TST TPMS 507 System and valve stem Question
I just ordered the TST TPMS 507 RV system for our Sunset Trail 20CK travel trailer. (4 sensors) I had read online, their website actually, that they recommend metal valve stems. When I called and aske...
Forum Discussion
RCMAN46 wrote:
Suggest you do a calculation dugggg is right on. a 17 gram sensor on a 15 inch wheel and 225x75R15 tire at 65 miles per hour will require a force of 4.7 lbs.
Centrifugal Force Caliculator
Using this calculator, why does one need to put in the angular speed as a variable? With linear speed of the vehicle and radius of the wheel, angular speed is derived. It even says so (omega = speed/radius).
That said, if one still uses this calctool and puts in say 6" for a radius (assuming a 7.5" radius for a 15" wheel and the sensor is at say 1.5" closer to the axle; tire is immaterial) and 65 mph and mass at 17g and with nothing in the angular speed field, I get 21.2 lbf. If I now start inputting numbers for omega I can get any number I want for a force.
In my younger days when I was sharp I would have calculated this for you including the transverse force and hence the deflection of the valve stem but I am lazy now. On top of that I have to get back to work ... ;)
