Life Factors for Rolling Bearings - Book
Life Factors for Rolling Bearings - Book
Over the years, engineers have estimated the life of ball and roller bearings with the aid of industry standards and guidelines. These include the ANSI/AFBMA standards for predictin g the life of ball bearings (1950) and roller bearings (1953), which were updated in 1978 and 1990, plus the ASME rolling-element bearing life factors (1971). These standards were published by the American National Standards Institute (ANSI) and the Anti-Friction Bearing Manufacturers Association (AFBMA), which is now the American Bearing Manufacturers Association (ABMA). The American Society of Mechanical Engineers (ASME) was the first to publish life factors to compliment these standards.

Recently, the Society of Tribologist and Lubrication Engineers (STLE), with the aid of rolling-element bearing experts, took these standards and guidelines one step further by developing new bearing life factors that further reflect improvements in steel processing, manufacturing, design analysis, and lubrication over the last 50 years. These improvements have gradually increased bearing life to a level that is much higher than that predicted by both the original industry standards of the 1950s and the 1971 ASME life factors. These new bearing life factors, along with the manufacturing advances, are described in STLE Life Factors for Rolling Bearings, 1992.
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