High precision angular contact ball bearing, sealed 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 diameter70 mm
D - External diameter100 mm
B - Bearing/Inner ring width16 mm
d1 - External diameter inner ring73,1 mm
d2 - External diameter inner ring71,15 mm
D1 - Inner diameter outer ring83,71 mm
D2 - Inner diameter outer ring85,31 mm
a - Charge load application point26 mm
α - Contact angle25 °
rs - Min fillet radius1 mm
r1s - Min fillet radius0,3 mm
Precision classP4S
Mass0,33 kg
Product classification image
C - Dynamic load10 kN
C0 - Static load8,3 kN
Cu - Fatigue limit load0,47 kN
f0 - Coefficient8.742
Axial displacement K Factor0.54
Preload level7
Preload value0,08 kN
Axial rigidity113 N/µm
Radial rigidity252 N/µm
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
Nlim - Grease lubrication limit speed16000 tr/min
BPFO - Characteristic outer ring frequency15,884 Hz
BPFI - Characteristic inner ring frequency18,116 Hz
FTF - Characteristic cage frequency0,467 Hz
BSF - Characteristic rolling element frequency13,745 Hz
da min - Min shoulder diameter IR75,5 mm
db min - Min IR shoulder diameter75,5 mm
Da max - Max shoulder diameter OR94,5 mm
Db max - Max OR shoulder diameter94,5 mm
r1a - Max fillet radius0,3 mm
ra max - Max shaft & housing fillet radius1 mm
Product classification image
Calcul factors image