Three Thai  bearing models include front-code, the basic code, post code
Bearing basic code represents the basic type, structure and size of the foundation bearing the code;. Pre and post code is when the structure shape, dimensions, tolerances, technical requirements bearing basic code have changed about adding additional code.
In addition to the basic code Santai   needle bearing basic code from the bearing type code, dimension series code, constitute diameter code
Type code:
0 Santai   double row angular contact ball bearings
1-aligning ball bearings
2 Spherical roller bearings and spherical roller thrust bearings
3 taper roller bearings
4 Santai   double row deep groove ball bearings
5 Thrust Ball Bearings
6 deep groove ball bearings
7 angular contact ball bearings
8 Thrust cylindrical roller bearings
N Santai   cylindrical roller bearings
Double or more columns indicated by the letter NN
U Three Thai  spherical bearings
Three Thai  QJ Four-point contact ball bearings