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ML71906HVUJ84S - 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 diameter30 mm
D - External diameter47 mm
B - Bearing/Inner ring width9 mm
d1 - External diameter inner ring35,1 mm
d2 - External diameter inner ring33,9 mm
D1 - Inner diameter outer ring42,15 mm
D2 - Inner diameter outer ring43,45 mm
a - Charge load application point13 mm
α - Contact angle25 °
rs - Min fillet radius0,3 mm
r1s - Min fillet radius0,3 mm
Precision classP4S
Mass0,047 kg
Product classification image
C - Dynamic load4,4 kN
C0 - Static load2,65 kN
Cu - Fatigue limit load0,15 kN
f0 - Coefficient8.38
Axial displacement K Factor0.8
Preload level8
Preload value0,11 kN
Axial rigidity87 N/µm
Radial rigidity186 N/µm
Tmin - Min operating temperature-30 °C
Tmax - Max operating temperature120 °C
Nlim - Oil lubrication limit speed51000 tr/min
Nlim - Grease lubrication limit speed35000 tr/min
BPFO - Characteristic outer ring frequency (60 rpm)9,956 Hz
BPFI - Characteristic inner ring frequency (60 rpm)12,044 Hz
FTF - Characteristic cage frequency (60 rpm)0,453 Hz
BSF - Characteristic rolling element frequency (60 rpm)9,463 Hz
da min - Min shoulder diameter IR32,5 mm
db min - Min IR shoulder diameter32,5 mm
Da max - Max shoulder diameter OR44,5 mm
Db max - Max OR shoulder diameter44,5 mm
r1a - Max fillet radius0,3 mm
ra max - Max shaft & housing fillet radius0,3 mm
Product classification image
Calcul factors image