Angular contact ball bearing the minimum load - bearing knowledge

To ensure satisfactory performance, the needle/angular contact ball bearing, like all ball bearings and roller bearings, must always take effect in a certain minimum of radial and axial load, especially if they want to speed or under high acceleration and load in the direction of rapid change. Under these conditions, the rolling element and cage of inertial force and friction of lubricant, is likely to have harmful effect of rolling bearing configuration status, and may cause between roller and raceway damaging sliding. On the centripetal needle bearing on the necessary minimum radial load can be used to estimate the following formula: Frm = 0. 02 C necessary minimum of angular contact ball bearing axial load can be calculated with the following formula: type of Frm = minimum radial load, kn Fam = minimum axial load, kn basic dynamic load rating (C = See the product table) Basic static load rating (, kn C0 = See the product table) Dm, Newton average diameter = 0, 5 (= bearing d + d) Speed, RPM mm n = cold starting or lubricant viscosity is very high, even higher load. Bearing parts weight and the minimum load external force more than necessary. If this is not the case, must exert the needle/angular contact ball bearing extra radial and/or the axial load.