Bearing 7209 CDB/GNP5 is free paired P5 grade NTN angular contact ball bearings 72B series, with molded resign cage and have a 15"contact angular, compound mode back-to-back DB type, which has a large distance between the acting load center of the bearing, therefore theseNTN bearings have a large momentary force load capacity, and can accommodate radial loads and axial loads in either direction.

In there, let's pay more attention to NTN bearings7209 CDB/GNP5 technical data in following:
 
                      
d = 50mm
D = 72mm
M = 12mm
Mass = 0.157kg
Basic Dynamic Load Rating Cr:  16.6KN
Basic Static Load Rating   Cor:  14.5KN
Limiting Speed - Grease Lubrication: 9200
Limiting Speed - Oil Lubrication 12000

Meanwhile, we have large stock of other NTN angular contact ball bearings as follows:
 

Japan NTN high precision angular contact ball bearings are mostly used for main spindle, so also called main spindle bearings. And these NTN bearings are with optimized internal design enables high speed operation and high rigidity, available with either steel or ceramic balls. Looking forward to your inquiry.