Table 3-2 Values of safety coefficient fs

Operating conditions		fs(min.)
		Ball bearings	Roller bearings
With bearing rotation	When high accuracy is required	2	3
	Normal operation	1	1.5
	When impact load is applied	1.5	3
Without bearing rotation (occasional oscillation)	Normal operation	0.5	1
	When impact load or uneven distribution load is applied	1	2

[Remark] For spherical thrust roller bearings ; fs4