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7224CG1UJ74 - SNR


High precision angular contact ball bearing, laminated resin cage centred on outer ring

In the ball bearing and high precision bearing ranges, the high precision angular contact ball bearing solves the maximum reliability constraints with increased performance in terms of rigidity, speed, capacity and precision. This bearing is recommended for demanding applications in terms of precision such as machine tool spindles. NTN-SNR is getting under ranges dedicated to requirements of speed, sealing, specific greasing, etc.


CAD file

Technical datasheet

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Internal diameter d 120 mm
External diameter D 215 mm
Bearing/Inner ring width(B) 40 mm
External diameter inner ring d1 153,2 mm
Inner diameter outer ring D1 181,8 mm
Inner diameter outer ring D2 199,1 mm
Charge load application point a 42 mm
Contact angle α 15 °
Min fillet radius rs 2,1 mm
Min fillet radius r1s 1,1 mm
Coefficient f0 14.812
Precision class P4
Mass 5,6 kg
Brand SNR
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Dynamic load, C 189 kN
Static load, C0 187 kN
Fatigue limit load, Cu 7,7 kN
Axial displacement K Factor 0.95
Preload level 7
Preload value 1,14 kN
Axial rigidity 165 N/µm
Radial rigidity 956 N/µm
Min operating temperature, Tmin -30 °C
Max operating temperature, Tmax 120 °C
Nlim (oil) 9900 tr/min
Nlim (grease) 6300 tr/min
Characteristic cage frequency, FTF 0,418 Hz
Characteristic rolling element frequency, BSF 5,703 Hz
Characteristic outer ring frequency, BPF0 6,682 Hz
Characteristic inner ring frequency, BPFI 9,318 Hz


Min shoulder diameter IR da min 132 mm
Min IR shoulder diameter (db min) 132 mm
Max shoulder diameter OR Da max 203 mm
Max OR shoulder diameter (Db max) 203 mm
Maxi fillet radius r1a 1 mm
Max shaft & housing fillet radius ra max 2 mm
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