According to its function, FAG rolling bearing corresponding to the radial, axial and circumferential seat fixed to the shaft and bearings. Radial and circumferential positioning is usually achieved by friction, i.e. FAG bearing ring using a tight fit. The axial positioning often achieved through direct contact, for example: nuts, bearing cover, shaft stopper ring, sleeve and rings etc.
  FAG Bearings with parts installed in
  Provided with the basis of shaft and housing tolerances according to ISO requirements and FAG bearing bore diameter tolerances and bearing tolerances according to DIN 620. ISO tolerance zone of tolerance is expressed. Tolerance with two characteristics, namely the zero line with the relative position and its width, tolerance position with the letters.
  Selection of FAG bearings tolerances should note the following issues
  take full advantage of bearings and bearing capacity, bearing inner and outer ring must be a good week to support.
  With the bearing sleeve and it's not a relative movement between the parts, otherwise it will damage the mating surfaces.
  Swimming inside and outside the ring of the bearing shaft and the box must be able to adapt to the changes in length, that is it for axial movement. Only N and NU type cylindrical roller bearings can move in-house.
Try to make the FAG bearing installation and removal easy.
  To meet the first two requirements, to the heart of the inner and outer bearing on the principles of the use of tight fit. However, if you swim for axial movement or bearing must not be separated bearings must be able to install and demolition, then the two rings can not be a tight fit, at least one ring is impossible. In this case, the bearing ring or cyclic loading by the local load is a decisive factor. If the load direction relative to the same ring, you can use the gap with the other ring is rotated relative to the load direction, then in principle, use the tight fit.
  N and NU type cylindrical roller bearings can be achieved in two rings tight fit at the same time, because the length of the bearing and can be used for compensation, and the bearing inner and outer rings can be installed separately.
  By the heavy load bearing, especially when the impact load requiring a greater amount of interference and the shape of more stringent tolerances.
  Bearing ring with tight fit between the internal and external temperatures will cause the radial clearance decrease. Elected to the radial clearance should be considered in this group



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