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The basic designation of FAG bearing

wallpapers News 2021-08-02
The basic designation of FAG bearing
The designation for the FAG bearing series comprises numbers and letters or letters and numbers. It indicates the type of FAG bearing, the diameter series, and, in many cases, the width series too. The basic designation contains the symbols for the FAG bearing series and the bearing bore.
 
The code of FAG bearing type
0: Double row angular contact ball bearing
1: Self-aligning ball bearing
2: Spherical roller bearing, spherical roller thrust bearing
3: Tapered roller bearing
4: Double row deep groove ball bearing
5: Axial deep groove ball bearing
6: Single row deep groove ball bearing
7: Single row angular contact ball bearing
8: Axial cylindrical roller bearing
C: Toroidal roller bearing
N: Single row cylindrical roller bearing
NN: Double row cylindrical roller bearing
QJ: Four-point contact bearing
The diameter and width series
Width and diameter series are described using numbers. In the case of radial bearings in accordance with DIN 616 and ISO 15, these are as follows:
 
For width series, the numbers 8, 9, 0, 1, 2, 3, 4, 5, 6, 7
For the designation of diameter series, the numbers 7, 8, 9, 0, 1, 2, 3, 4, 5
Dimension series for FAG radial bearings (excluding tapered roller and needle roller bearings)
 
Designations of FAG metric tapered roller bearings
The above figure describes as an example the structure of the designation for a FAG metric tapered roller bearing (dimension series to ISO 355, designation to ISO 10317). The 3 indicates the contact angle range. The first letter (F in this case) indicates a diameter series. Each diameter series has a certain ratio of D/d (outside diameter to bore diameter). The second letter (E in this case) indicates a width series. Each width series has a certain ratio of bearing width T to the height of the bearing cross-section. The addition of the letter T (for tapered roller bearing) at the start and a three-digit number at the end for the bearing bore diameter in mm (in this case 120) gives the complete designation of a FAG tapered roller bearing.
 
FAG bearing prefix
The FAG bearing prefix normally identifies individual FAG bearing parts of complete bearings (in certain cases, this may also be part of the basic designation)
 
Prefix        Description of prefix
GS         Single part housing locating washer
K            axial cylindrical roller and cage assembly
WS        shaft locating washer
LS         bearing washers, alternatively for shaft and housing locating washer
 


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