A bearing fitled inside a housing is called a bearing insert. The internal design and the loading capacity of this bearing insert corresponds with that of the ball bearings of class 62.. or 63.., pursuant to DIN 625.
The outer ring on a bearing insert is ground convex, and fits into a mating bore in the housing. The axle can have any angular movement thanks to the convex fitting of the bearing unit inside the housing. Misalignment of the bearing and sagging of the shaft are therefore automatically corrected. The angular freedom also means that there are no end pressures between the balls and their races.
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