Double-row Angular Contact Ball bearing families are not big, only have 32** metric, max capacity, light, 32°contact angle series; 32**B metric, conrad, light, 25°contact angle series; 33** metric, max capacity,medium, 32°contact angle series; 33**B metric, conrad, medium, 25°contact angle series; 52xx metric conrad light, 25°contact angle series; and 53xx metric conrad, medium, 25°contact angle series.

The item number of Double-row Angular Contact Ball bearings normally consist of follows parts: Materies prefix, basic typer & series, bore size, contact angle, seal type, cage material, and internal clearance. If the parts is blank, it means it is standard.

Take EP3210B.2RS.TNG.C3 for example, EP is materies prefix, means this bearing is made of Extra pire steel (If it is blank, then the bearing is standard materials); 32 is bearing type and series, means this bearing is metric, max capacity, light series; 10 is bore size, means this bearing ID is 50mm; B is contact angel, means this bearing is with 25°contact angle (If it is blank, 3xxx type, angel is 32°, while 5xxx type is 25°contact angle); 2RS is seal type, means this bearing is with double contact seal. TNG is cage material, means it is with polymide cage. C3 is internal Clearance, means this bearing’s clearance is greater than normal (If it is blank, then the bearing is normal clearance.).

Other information you can see Follows charter.

Different Brand have different number . For examples, Maximum Capacitu, light series, SKF is 52xxE or 32xx , NSK is 32**, 32xxJ, while FAG brand is 32** and 32**C, TIMKEN is 52** and 52**W. Especially for cage material, Different bearing brand are varies. Polyamide cage, NSK is TNG/TNH, NTN have no this type,, FAG is TVP/TVH, SKF is TN9, while TIMKEN is PRB. For the difference, kindly check the interchange charter as follows:

This table only provides the normal interchange for your convenient compare. But for special application or special items, you can contact us for detail to avoid any errors or omissions.