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ML71913HVUJ74S - SNR

ML71913HVUJ74S

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 diameter65 mm
D - External diameter90 mm
B - Bearing/Inner ring width13 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 point24 mm
α - Contact angle25 °
rs - Min fillet radius1 mm
r1s - Min fillet radius0,3 mm
Precision classP4S
Mass0,202 kg
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PRODUCT PERFORMANCE
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-30 °C
Tmax - Max operating temperature120 °C
Nlim - Oil lubrication limit speed25000 tr/min
Nlim - Grease lubrication limit speed17500 tr/min
BEARING FREQUENCIES
BPFO - Characteristic outer ring frequency (60 rpm)15,884 Hz
BPFI - Characteristic inner ring frequency (60 rpm)18,116 Hz
FTF - Characteristic cage frequency (60 rpm)0,467 Hz
BSF - Characteristic rolling element frequency (60 rpm)13,745 Hz
ABUTMENT
da min - Min shoulder diameter IR70,5 mm
db min - Min IR shoulder diameter70,5 mm
Da max - Max shoulder diameter OR84,5 mm
Db max - Max OR shoulder diameter84,5 mm
r1a - Max fillet radius0,3 mm
ra max - Max shaft & housing fillet radius1 mm
Product classification image
Calcul factors image