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The Main Size and Code of the
bearings |
5.1
major size
Please refer to table 5.1 for the major size of roller bearing.
It mainly has bearing inner diameter (d) , bearing outer diameter
(D), bearing width(B), chamfer dimension(r) etc.
All the major dimensions have been stipulated in the National Standard
of GB/T273.3-1999.
In the Major Size Table, other sizes which are opposite to internal
diameter code, internal diameter size will be shown according to
the diameter series and size series.
Diameter series refers to the staged bearing outer diameter series
comparing with the standard bearing inner diameter. Size series
refers to the combination between width and diameter series.
5.2 Bearing code
Roller bearing code shows the names of bearing structure, major
size, rotating accuracy, internal clearance, specification. It is
composed of the basic and auxiliary codes. Example 1, example2
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