Ball bearings WIB - Standard ball bearings - Variable parameters

STANDARD BEARINGS Variable Parameters Internal Clearances
	Normalized Radial Clearance	Load	Speed	Temperature	Fit	Friction Torque	Noise	Axial Clearance
	C2	high radial	low	normal, stable	free on shaft	medium	low	low
	CN	Clearance close to zero, operation and noise normal Low load - low to medium speed - normal, stable temperature
	C3	medium axial	low	OR ≠ IR	tight	low	higher	medium
	C4	high axial	very high	OR ≠ IR, high	very tight	low	higher	important
	Additional information ● The use of paired bearings is recommended if a very small axial clearance is required ● Increasing the radial clearance (C3, C4) leads to an increase of the admissible misalignment angle, which allows to absorb some misalignment

Axial Clearance	Designations	Value
Standard	Void	Resulting from the radial clearance and the internal standard construction
Specific	X followed by the maximum clearance value	May be obtained by modifying the internal bearing construction. The limit value will depend on the radial clearance