Breakdown of the drawing number
![Breakdown of the drawing number Breakdown of the drawing number](https://www.thyssenkrupp-rotheerde.com/_legacy/UCPthyssenkruppBACTBearing/assets.files/pictures/products/rothe_erde_grosswaelzlager/technische_grundlagen/70rotab_image_w335.png)
* For product “2”, the codes for bearing design, circumference diameter and variant number do not apply.
Our slewing bearings are described in terms of a few design features by their drawing numbers.
The information is explained using the first bearing from the RD 900 model series.
![Breakdown of the drawing number Breakdown of the drawing number](https://www.thyssenkrupp-rotheerde.com/_legacy/UCPthyssenkruppBACTBearing/assets.files/pictures/products/rothe_erde_grosswaelzlager/technische_grundlagen/zeichnungsfeld_image_w335.png)
Drawing title block with tolerance information for machined diameters
For a drawing title block with tolerance information for machined diameters, an example can be found on the adjacent image.