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71914HVUJ84 - SNR

71914HVUJ84

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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Specs

PRODUCT DIMENSIONS

Internal diameter d 70 mm
External diameter D 100 mm
Bearing/Inner ring width(B) 16 mm
External diameter inner ring d1 80,1 mm
Inner diameter outer ring D1 89,9 mm
Inner diameter outer ring D2 93,49 mm
Charge load application point a 28 mm
Contact angle α 25 °
Min fillet radius rs 1 mm
Min fillet radius r1s 0,3 mm
Coefficient f0 16.764
Precision class P4
Mass 0,34 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load, C 22,4 kN
Static load, C0 23 kN
Fatigue limit load, Cu 1,32 kN
Axial displacement K Factor 0.5
Preload level 8
Preload value 0,59 kN
Axial rigidity 247 N/µm
Radial rigidity 494 N/µm
Min operating temperature, Tmin -30 °C
Max operating temperature, Tmax 120 °C
Nlim (oil) 19000 tr/min
Nlim (grease) 12500 tr/min
Characteristic cage frequency, FTF 0,458 Hz
Characteristic rolling element frequency, BSF 10,631 Hz
Characteristic outer ring frequency, BPF0 10,984 Hz
Characteristic inner ring frequency, BPFI 13,016 Hz

ABUTMENT

Min shoulder diameter IR da min 75,5 mm
Min IR shoulder diameter (db min) 75,5 mm
Max shoulder diameter OR Da max 94,5 mm
Max OR shoulder diameter (Db max) 94,5 mm
Maxi fillet radius r1a 0,3 mm
Max shaft & housing fillet radius ra max 1 mm
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