Coefficient fr of Rolling Friction Steel Wheel Pneumatic Tires
Wheel =
Inflation press, lb/in2 =
Load, lb =
Friction on Concrete =
Friction on Bluegrass sod =
Friction on Tilled loam =
Friction on Loose sand =
Friction on Loose snow 10-14 deep =
* Skid-ring tractor tire
† Ribbed tread tractor tire
All other pneumatic tires with implement-type tread