ML71911HVUJ74S - SNR


High precision angular contact ball bearing, high speed series ML, 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) 55 mm
External diameter (D) 80 mm
Bearing/Inner ring width (B) 13 mm
External diameter inner ring d1 63,1 mm
External diameter inner ring (d2) 61,15 mm
Inner diameter outer ring (D1) 73,71 mm
Inner diameter outer ring D2 75,31 mm
Charge load application point a 22 mm
Contact angle α 25 °
Min fillet radius (rs) 1 mm
Min fillet radius r1s 0,3 mm
Coefficient f0 8.618
Precision class P4S
Mass 0,177 kg
Brand SNR
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Dynamic load (C) 9,5 kN
Static load (C0) 7,2 kN
Fatigue limit load (Cu) 0,41 kN
Axial displacement K Factor 0.58
Preload level 7
Preload value 80000 kN
Axial rigidity 104 N/µm
Radial rigidity 231 N/µm
Min operating temperature (Tmin) -30 °C
Max operating temperature (Tmax) 120 °C
Nlim (oil) 29000 tr/min
Nlim (grease) 20000 tr/min
Characteristic cage frequency, FTF 0,462 Hz
Characteristic rolling element frequency, BSF 11,937 Hz
Characteristic outer ring frequency, BPF0 13,868 Hz
Characteristic inner ring frequency, BPFI 16,132 Hz


Min shoulder diameter IR (da min) 60,5 mm
Min IR shoulder diameter (db min) 60,5 mm
Max shoulder diameter OR (Da max) 74,5 mm
Max OR shoulder diameter (Db max) 74,5 mm
Maxi fillet radius r1a 0,3 mm
Max shaft & housing fillet radius (ra max) 1 mm
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Calcul factors image