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ML71908HVUJ84S - 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.


3D file

Technical datasheet

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d - Internal diameter40 mm
D - External diameter62 mm
B - Bearing/Inner ring width12 mm
d1 - External diameter inner ring46,8 mm
d2 - External diameter inner ring44,7 mm
D1 - Inner diameter outer ring55,91 mm
D2 - Inner diameter outer ring57,41 mm
a - Charge load application point18 mm
α - Contact angle25 °
rs - Min fillet radius0,6 mm
r1s - Min fillet radius0,3 mm
Precision classP4S
Mass0,109 kg
Product classification image
C - Dynamic load6,5 kN
C0 - Static load4,35 kN
Cu - Fatigue limit load0,29 kN
f0 - Coefficient8.479
Axial displacement K Factor0.69
Preload level8
Preload value0,16 kN
Axial rigidity114 N/µm
Radial rigidity245 N/µm
Tmin - Min operating temperature-30 °C
Tmax - Max operating temperature120 °C
Nlim - Oil lubrication limit speed38000 tr/min
Nlim - Grease lubrication limit speed26000 tr/min
BPFO - Characteristic outer ring frequency (60 rpm)11,415 Hz
BPFI - Characteristic inner ring frequency (60 rpm)13,586 Hz
FTF - Characteristic cage frequency (60 rpm)0,457 Hz
BSF - Characteristic rolling element frequency (60 rpm)10,358 Hz
da min - Min shoulder diameter IR44,5 mm
db min - Min IR shoulder diameter44,5 mm
Da max - Max shoulder diameter OR57,5 mm
Db max - Max OR shoulder diameter57,5 mm
r1a - Max fillet radius0,3 mm
ra max - Max shaft & housing fillet radius0,6 mm
Product classification image
Calcul factors image