# Loads

 Minimum load For additional information → Requisite minimum load The minimum load requirements can be ignored for bearings operating at the relatively low speeds shown within the green area in diagram 1. For operating speeds outside the green area use: Equivalent dynamic bearing load For additional information → Equivalent dynamic bearing load, P Fr ≤ 0,55 Fa and: if run-out in the bearing arrangement does not affect the load distribution in the spherical roller thrust bearing → P = 0,88 (Fa + X Fr) if run-out in the bearing arrangement affects the load distribution in the spherical roller thrust bearing (e.g. the run-out of another bearing that induces radial forces) → P = Fa + X Fr Fr > 0,55 Fa → Use an additional bearing, which  accommodates the radial load. Equivalent static bearing load For additional information → Equivalent static load Fr ≤ 0,55 Fa → P0 = Fa + X0 Fr Fr > 0,55 Fa → Use an additional bearing, which  accommodates the radial load.

## Symbols

 A minimum load factor (→ product table) Cr load factor = 1,8 for 292 series = 2,0 for 293 series = 2,2 for 294 series D bearing outside diameter [mm] d bearing bore diameter [mm] f0 factor for lubrication method. For oil bath lubrication with a horizontal shaft and for grease lubrication: = 3 for 292 series = 3,5 for 293 series = 4 for 294 series For oil bath lubrication with a vertical shaft and for oil jet lubrication: = 6 for 292 series = 7 for 293 series = 8 for 294 series Fam minimum axial load [kN] Flub axial load required to overcome lubricant drag [kN] Fr radial load [kN] n rotational speed [r/min] P equivalent dynamic bearing load [kN] P0 equivalent static bearing load [kN] X calculation factor = 1,1 for 292 series = 1,2 for 293 series = 1,3 for 294 series X0 calculation factor = 2,5 for 292 series = 2,7 for 293 series = 2,9 for 294 series ν actual operating viscosity of the lubricant [mm2/s]