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7218HG1UJ74 - 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 90 mm
External diameter D 160 mm
Bearing/Inner ring width(B) 30 mm
External diameter inner ring d1 113,9 mm
Inner diameter outer ring D1 136,4 mm
Inner diameter outer ring D2 149,7 mm
Charge load application point a 44 mm
Contact angle α 25 °
Min fillet radius rs 2 mm
Min fillet radius r1s 1 mm
Coefficient f0 14.9
Precision class P4
Mass 2,24 kg
Brand SNR
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Dynamic load, C 116 kN
Static load, C0 100 kN
Fatigue limit load, Cu 4,95 kN
Axial displacement K Factor 0.5
Preload level 7
Preload value 1,16 kN
Axial rigidity 302 N/µm
Radial rigidity 642 N/µm
Min operating temperature, Tmin -30 °C
Max operating temperature, Tmax 120 °C
Nlim (oil) 11500 tr/min
Nlim (grease) 7600 tr/min
Characteristic cage frequency, FTF 0,419 Hz
Characteristic rolling element frequency, BSF 5,478 Hz
Characteristic outer ring frequency, BPF0 6,291 Hz
Characteristic inner ring frequency, BPFI 8,709 Hz


Min shoulder diameter IR da min 100 mm
Min IR shoulder diameter (db min) 100 mm
Max shoulder diameter OR Da max 150 mm
Max OR shoulder diameter (Db max) 150 mm
Maxi fillet radius r1a 1 mm
Max shaft & housing fillet radius ra max 2 mm
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