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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>skf double row cylindrical roller bearing minimum load calculation formula Skf double row cylindrical roller bearing minimum load calculation formula
The minimum load is to ensure the satisfaction of the operation; like all ball bearings and roller bearings; skf double row cylindrical roller bearings need to always accept the minimum load; especially in high-speed operation or high speed or load direction change conditions Under the above conditions; the inertia of the roller and the cage and the conflict of the lubricant can have a detrimental effect on the rolling conditions of the bearing equipment; and can cause a destructive sliding between the roller and the raceway. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
The following formula can be used; the minimum necessary load to be applied to a double row cylindrical roller bearing is estimated:
During which Frm = minimum radial load; kN
Kr = minimum load factor (see product table)
n = running speed; r/min
Nr = speed rating according to the product table; r/min
Split bearing; nr = normal speed,
For sealed bearings; nr = 1. 3 × speed limit.
Dm = bearing uniform diameter = 0,5 (d + D); mm
Low temperature start or high viscosity of the lubricant; can require higher loads. The component parts of the bearing support and the external force often exceed the necessary minimum load. If this is not the case; it is necessary to have the rated radial load of the double row cylindrical roller bearing .
Bearings made in accordance with the public service SP standard are preloaded at the time of installation; this generally does not require the above calculation.
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Skf double row cylindrical roller bearing minimum load calculation formula
Source: China Bearing Network Time: 2014-05-30