Germany import FAG bearings accuracy class :

Germany bearing precision points (main) dimensional accuracy and rotation precision. Import bearings rolling non-contact seal precision grade already standardization, divided into class 0, 6 X, 6 class, level 5, 4 level, level 2 six level.

Precision from 0 level up in turn increase, for general purpose 0 level has enough, but used in table 1 shows condition or situation, need 5 level or higher precision.

The precision of the above level based on ISO standard though set, but the call in the national standards in different.

Germany bearing size accuracy large motor of the bearing SKF installation (and shaft and shell the installation project) :

1, diameter, outer diameter, width and assembly of the width of the allowable deviation;

2, the roller in the group and the diameter months-moons months-moons diameter deviation;

3, but the size of the Angle limit value allowed;

4, width of the amount allowed changes.

Germany bearing rotation precision (linear motor and precision high speed the ball screw vice NSK bearing of development and relevant project area beating) :

1, inner ring and outer ring the permission of the axial and radial beat;

2, the inner ring allows transverse to beat;

3, outer diameter gradient allows variations under surface;

4, thrust bearing groove thickness changes allow amount;
5, tapered hole deviation and allow the quantity change.



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