Dear all.
Could any one send me some literature for Accelerated life testing for mechanical components like Bearing, Gears, Shaft, etc.,

thanks in advance.

regards
Govind.

A lot depends on the component you are testing – factors that could be used in ALT include stress levels, vibration, shock, cycling, temperature, etc.
Some examples in this on-line book:
http://www.weibull.com/acceltestwebcontents.htm