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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 diameter65 mm
D - External diameter100 mm
B - Bearing/Inner ring width18 mm
d1 - External diameter inner ring76,9 mm
d2 - External diameter inner ring75,1 mm
D1 - Inner diameter outer ring89,91 mm
D2 - Inner diameter outer ring93,11 mm
a - Charge load application point21 mm
α - Contact angle17 °
rs - Min fillet radius1,1 mm
r1s - Min fillet radius1 mm
Precision classP4S
Mass0,445 kg
Product classification image
C - Dynamic load17,3 kN
C0 - Static load12,7 kN
Cu - Fatigue limit load0,69 kN
f0 - Coefficient8.402
Axial displacement K Factor0.96
Preload level7
Preload value0,09 kN
Axial rigidity67 N/µm
Radial rigidity329 N/µm
Tmin - Min operating temperature-30 °C
Tmax - Max operating temperature120 °C
Nlim - Oil lubrication limit speed27000 tr/min
Nlim - Grease lubrication limit speed19500 tr/min
BPFO - Characteristic outer ring frequency (60 rpm)11,336 Hz
BPFI - Characteristic inner ring frequency (60 rpm)13,664 Hz
FTF - Characteristic cage frequency (60 rpm)0,453 Hz
BSF - Characteristic rolling element frequency (60 rpm)10,178 Hz
da min - Min shoulder diameter IR72 mm
db min - Min IR shoulder diameter72 mm
Da max - Max shoulder diameter OR93 mm
Db max - Max OR shoulder diameter93 mm
r1a - Max fillet radius1 mm
ra max - Max shaft & housing fillet radius1 mm
Product classification image
Calcul factors image