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High precision angular contact ball bearings

7022CVUJ84 - SNR

7022CVUJ84

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 diameter110 mm
D - External diameter170 mm
B - Bearing/Inner ring width28 mm
d1 - External diameter inner ring129,4 mm
D1 - Inner diameter outer ring150,6 mm
D2 - Inner diameter outer ring158,91 mm
a - Charge load application point33 mm
α - Contact angle15 °
rs - Min fillet radius2 mm
r1s - Min fillet radius1 mm
Precision classP4
Mass1,98 kg
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PRODUCT PERFORMANCE
C - Dynamic load95,6 kN
C0 - Static load98,3 kN
Cu - Fatigue limit load4,45 kN
f0 - Coefficient15.901
Axial displacement K Factor0.86
Preload level8
Preload value1,51 kN
Axial rigidity211 N/µm
Radial rigidity1052 N/µm
Tmin - Min operating temperature-30 °C
Tmax - Max operating temperature120 °C
N lim - Oil lubrication limit speed12500 tr/min
N lim - Grease lubrication limit speed8200 tr/min
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)9,235 Hz
BPFI - Over rolling frequency on inner (60 rpm)11,765 Hz
BSF - Over rolling frequency on rolling element (60 rpm)7,901 Hz
BRF - Rotational frequency – rolling element (60 rpm)3,951 Hz
FTF - Rotational frequency - cage (60 rpm)0,44 Hz
ABUTMENT
da min - Min shoulder diameter IR120 mm
db min - Min IR shoulder diameter120 mm
Da max - Max shoulder diameter OR160 mm
Db max - Max OR shoulder diameter160 mm
r1a - Max fillet radius1 mm
ra max - Max shaft & housing fillet radius2 mm
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