FAG Angular Contact Ball Bearing Equivalent Dynamic Loads and Tolerances

FAG Single Row Angular Contact Ball Bearing Design and Safety Guidelines Bearing Equivalent Dynamic Load Bearing Equivalent Dynamic Load P is applicable to the case where the bearing bears radial and axial dynamic loads at the same time. The bearing under the equivalent dynamic load P has the same rating life as the bearing under the actual combined load. For bearings under dynamic load, the following formula is used: contact angle 40Fa kN bearing axial dynamic load Fr kN bearing radial dynamic load P kN bearing equivalent dynamic load under combined load. For bearings under dynamic load, the following formula is used: contact angle 30Fa kN bearing axial dynamic load Fr kN bearing radial dynamic load P kN bearing equivalent dynamic load under combined load. Minimum load Under continuous operation, for angular contact ball bearings with cages, the minimum radial load must satisfy P/Cr 0.01. Speed u200bu200bfor the limiting speed nG of the bearing, see dimension table. The running speed of the bearing cannot exceed the dynamic limit speed nG. Bearing Arrangement Load Ratio Bearing Equivalent Dynamic Load Single Bearing P u003d Fr P u003d 0.35 Fr + 0.57 Fa Bearing Arrangement Load Ratio Bearing Equivalent Dynamic Load Single Bearing P u003d Fr P u003d 0.39 Fr + 0.76 Fa The bearing arrangement is designed to combine the performance of the bearing To utilize, adjacent structures must have a suitable design. Shaft and Housing Tolerances For recommended tolerances for cylindrical bore radial bearing shafts, see table, page 37. Recommended tolerances for radial housing bores, see table, page 38. Mounting dimensions The bearing dimension table gives the maximum values u200bu200bof the lead radii ra and ra1 and the diameters Da, Db and da of the adjacent structural shoulders. Accuracy Dimensions and Geometric Tolerances The main dimensions of standard angular contact ball bearings conform to standard DIN 628-1. The dimensional and geometrical tolerances of standard bearings are P5 according to standard DIN 620-2. By agreement, we can supply non-standard bearings in other tolerance classes.