Effect of radial internal clearance on the fatigue life of the radial cylindrical roller bearing

Abstract

A material constant B bearing width C basic dynamic load rating D bearing outside diameter Dr roller diameter E Young’s modulus Fr radial load of the bearing INT integer function L fatigue life Lr roller length Qr resultant normal force in the roller‐main race contact St Stribeck’s constant Uz local displacement inside the bearing elements Z depth of occurrence of maximal von Mises stresses along the x axis Zr number of rollers in the bearing b half width of the contact c exponent in the equation determining the survival prob‐ ability d bearing bore diameter dbi diameter of the inner ring raceway dbo diameter of the outer ring raceway e Weibull slope g radial clearance in the bearing h exponent in the equation determining the survival prob‐ ability i inner raceway j number of roller l length of the roller‐main race contact area o outer raceway n number of pairs of loaded items rb radius of the main race rc roller chamfer u number of load cycles per one revolution δmax maximum elastic deformation δc total displacement of the bearing axis ν Poisson’s constant σ maximal von Mises stress occurring along the x axis Chudzik A, WArdA B. Effect of radial internal clearance on the fatigue life of the radial cylindrical roller bearing. Eksploatacja i Niezawodnosc – Maintenance and reliability 2019; 21 (2): 211–219, http://dx.doi.org/10.17531/ein.2019.2.4.