Table 2. Service life of rubber bush for tracked vehicles

Conditions	Fatigue life prediction	Service life (Cycles)	Driving distance (Km)
Room temp.	Nf = 206,062 [G-L. Strain]-2.433	1,690,397	4,000
3 years	Nf = 37,239 [G-L. Strain]-2.732	395,370	1,000
5 years	Nf = 19,498 [G-L. Strain]-2.800	219,808	550