The design of double row angular contact bearing is similar to two single row angular contact ball bearings placed adjacent. 

Series Item No. Bore Diameter(mm) 
7000 7000~ 7060 10~300 
7200 7200~7248 10~240 
7300 7300~7340 10~200 
7900 7906~7932 30~160 
3200 3200~3222 10~110 
3300 3302~3322 15~110 
5200 5200~5220 10~100 
5300 5303~5316