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7022HVUJ74 - SNR

7022HVUJ74

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-SNR is getting under ranges dedicated to requirements of speed, sealing, specific greasing, etc.

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Technical datasheet

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Specs

PRODUCT DIMENSIONS

Internal diameter (d) 110 mm
External diameter (D) 170 mm
Bearing/Inner ring width (B) 28 mm
External diameter inner ring d1 129,4 mm
Inner diameter outer ring (D1) 150,6 mm
Inner diameter outer ring D2 158,91 mm
Charge load application point a 47 mm
Contact angle α 25 °
Min fillet radius (rs) 2 mm
Min fillet radius r1s 1 mm
Coefficient f0 16.088
Precision class P4
Mass 2 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load (C) 90,4 kN
Static load (C0) 93,4 kN
Fatigue limit load (Cu) 4,45 kN
Axial displacement K Factor 0.42
Preload level 7
Preload value 790000 kN
Axial rigidity 308 N/µm
Radial rigidity 662 N/µm
Min operating temperature (Tmin) -30 °C
Max operating temperature (Tmax) 120 °C
Nlim (oil) 11500 tr/min
Nlim (grease) 7500 tr/min
Characteristic cage frequency, FTF 0,443 Hz
Characteristic rolling element frequency, BSF 7,915 Hz
Characteristic outer ring frequency, BPF0 9,313 Hz
Characteristic inner ring frequency, BPFI 11,687 Hz

ABUTMENT

Min shoulder diameter IR (da min) 120 mm
Min IR shoulder diameter (db min) 120 mm
Max shoulder diameter OR (Da max) 160 mm
Max OR shoulder diameter (Db max) 160 mm
Maxi fillet radius r1a 1 mm
Max shaft & housing fillet radius (ra max) 2 mm
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