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ML71914CVUJ74S - SNR

ML71914CVUJ74S

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.

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Technical datasheet

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PRODUCT DEFINITION
BrandSNR
d - Internal diameter70 mm
D - External diameter100 mm
B - Bearing/Inner ring width16 mm
d1 - External diameter inner ring80,1 mm
d2 - External diameter inner ring77,85 mm
D1 - Inner diameter outer ring91,96 mm
D2 - Inner diameter outer ring94,11 mm
a - Charge load application point21 mm
α - Contact angle17 °
rs - Min fillet radius1 mm
r1s - Min fillet radius0,3 mm
Precision classP4S
Mass0,33 kg
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PRODUCT PERFORMANCE
C - Dynamic load13 kN
C0 - Static load10,7 kN
Cu - Fatigue limit load0,59 kN
f0 - Coefficient8.661
Axial displacement K Factor0.98
Preload level7
Preload value0,065 kN
Axial rigidity66 N/µm
Radial rigidity322 N/µm
Tmin - Min operating temperature-30 °C
Tmax - Max operating temperature120 °C
Nlim - Oil lubrication limit speed26000 tr/min
Nlim - Grease lubrication limit speed19000 tr/min
BEARING FREQUENCIES
BPFO - Characteristic outer ring frequency (60 rpm)14,847 Hz
BPFI - Characteristic inner ring frequency (60 rpm)17,153 Hz
FTF - Characteristic cage frequency (60 rpm)0,464 Hz
BSF - Characteristic rolling element frequency (60 rpm)13,207 Hz
ABUTMENT
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