Loads



CARB bearings with a cage
Full complement CARB bearings
Minimum load

For additional
information
(→ Requisite minimum load)
Frm = 0,007 C0

Oil lubricated bearings:






Perform calculations

Frm = 0,01 C0

Perform calculations
When starting up at low temperatures or when the lubricant is highly viscous, even greater minimum loads than Frm = 0,007 C0 and 0,01 C0, respectively, may be required. The weight of the components supported by the bearing, together with external forces, generally exceed the requisite minimum load. If this is not the case, the bearing must be subjected to an additional radial load.
Equivalent dynamic bearing load

For additional
information
(→ Equivalent dynamic bearing load)
P = Fr

Perform calculations
Equivalent static bearing load

For additional
information
(→ Equivalent static bearing load)
P0 = Fr

Perform calculations

Symbols

C0
basic static load rating [kN] (→ product tables)
Fr
radial load [kN]
Frm
minimum radial load [kN]
P
equivalent dynamic bearing load [kN]
P0equivalent static bearing load [kN]
n
rotational speed [r/min]
nrreference speed [r/min] (→ product tables)
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