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High precision angular contact ball bearings

7017HVUJ84 - SNR

7017HVUJ84

High precision angular contact ball bearing, 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 is getting sub-ranges dedicated to requirements of speed, sealing, specific greasing, etc.

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter85 mm
D - External diameter130 mm
B - Bearing/Inner ring width22 mm
d1 - External diameter inner ring99,3 mm
D1 - Inner diameter outer ring115,7 mm
D2 - Inner diameter outer ring122,49 mm
a - Charge load application point36 mm
α - Contact angle25 °
rs - Min fillet radius1,1 mm
r1s - Min fillet radius0,6 mm
Precision classP4
Mass0,89 kg
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PRODUCT PERFORMANCE
C - Dynamic load56,9 kN
C0 - Static load55,7 kN
Cu - Fatigue limit load3 kN
f0 - Coefficient16.07
Axial displacement K Factor0.46
Preload level8
Preload value1,5 kN
Axial rigidity366 N/µm
Radial rigidity733 N/µm
Tmin - Min operating temperature-30 °C
Tmax - Max operating temperature120 °C
N lim - Oil lubrication limit speed15000 tr/min
N lim - Grease lubrication limit speed9800 tr/min
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)9,305 Hz
BPFI - Over rolling frequency on inner (60 rpm)11,695 Hz
BSF - Over rolling frequency on rolling element (60 rpm)7,863 Hz
BRF - Rotational frequency – rolling element (60 rpm)3,932 Hz
FTF - Rotational frequency - cage (60 rpm)0,443 Hz
ABUTMENT
da min - Min shoulder diameter IR92 mm
db min - Min IR shoulder diameter92 mm
Da max - Max shoulder diameter OR123 mm
Db max - Max OR shoulder diameter123 mm
r1a - Max fillet radius0,6 mm
ra max - Max shaft & housing fillet radius1 mm
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