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MLE71912CVUJ84S - SNR

MLE71912CVUJ84S

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.

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Technical datasheet

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PRODUCT DEFINITION
d - Internal diameter60 mm
D - External diameter85 mm
B - Bearing/Inner ring width13 mm
d1 - External diameter inner ring68,1 mm
d2 - External diameter inner ring66,15 mm
D1 - Inner diameter outer ring78,71 mm
D2 - Inner diameter outer ring80,31 mm
a - Charge load application point17 mm
α - Contact angle17 °
rs - Min fillet radius1 mm
r1s - Min fillet radius0,3 mm
Precision classP4S
Mass0,19 kg
BrandSNR
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PRODUCT PERFORMANCE
C - Dynamic load10,3 kN
C0 - Static load8,2 kN
Cu - Fatigue limit load0,44 kN
f0 - Coefficient8.635
Axial displacement K Factor1.01
Preload level8
Preload value0,16 kN
Axial rigidity80 N/µm
Radial rigidity378 N/µm
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
Nlim - Grease lubrication limit speed22000 tr/min
BEARING FREQUENCIES
BPFO - Characteristic outer ring frequency14,814 Hz
BPFI - Characteristic inner ring frequency17,186 Hz
FTF - Characteristic cage frequency0,463 Hz
BSF - Characteristic rolling element frequency12,834 Hz
ABUTMENT
da min - Min shoulder diameter IR65,5 mm
db min - Min IR shoulder diameter65,5 mm
Da max - Max shoulder diameter OR79,5 mm
Db max - Max OR shoulder diameter79,5 mm
r1a - Max fillet radius0,3 mm
ra max - Max shaft & housing fillet radius1 mm
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