[en] Shaft is an important part of equipment, it connects rotary assembly and immobile assembly. Its reliability is important for equipment. When shaft circumrotates rapidly in equipment, its surface is easy abrasion. Abrasion is an important factor to conduce machine comedown function. So equipment demands shaft must enough reliability. Radial load is primary factor to conduce shaft occur bad abrasion. Because the configuration of shaft is especial, abrasion is slow, it is difficult to estimate the life of shaft. Accelerated life for radial load to shaft can estimate reliability of shaft in shortly time. Research disabled mechanism, insure disabled mechanism unable change. On this basis, constitute project for accelerated life to test. Anti power is the accelerated model. This test processes in tester of abrasion. There are four stree levels. Through nearly 2 years test, there were 3 shafts failure in the highest stress level, no failure in other 3 stress levels. Calculate the reliability, the result indicates the shaft satisfies the demand of collectivity. (authors)