This formula is for general conditions and normal belt application. Factor K1 defines the influence of rubber kality.For example.

Cover thiknes,mm K1

< 31

< 51.3

< 81.6

Tensil strength,MpaK1

15-180.85

18-221

22-261.3

For heat resistance belt

Temp. 60oC125 oC160 oC

10.550.2 ■