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71910CVUJ84 - SNR

71910CVUJ84

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 50 mm
External diameter D 72 mm
Bearing/Inner ring width(B) 12 mm
External diameter inner ring d1 56,8 mm
Inner diameter outer ring D1 65,2 mm
Inner diameter outer ring D2 68,02 mm
Charge load application point a 14 mm
Contact angle α 15 °
Min fillet radius rs 0,6 mm
Min fillet radius r1s 0,3 mm
Coefficient f0 16.386
Precision class P4
Mass 0,129 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load, C 14,8 kN
Static load, C0 13,4 kN
Fatigue limit load, Cu 0,72 kN
Axial displacement K Factor 1.26
Preload level 8
Preload value 0,23 kN
Axial rigidity 80 N/µm
Radial rigidity 395 N/µm
Min operating temperature, Tmin -30 °C
Max operating temperature, Tmax 120 °C
Nlim (oil) 29000 tr/min
Nlim (grease) 19000 tr/min
Characteristic cage frequency, FTF 0,45 Hz
Characteristic rolling element frequency, BSF 9,509 Hz
Characteristic outer ring frequency, BPF0 9,444 Hz
Characteristic inner ring frequency, BPFI 11,556 Hz

ABUTMENT

Min shoulder diameter IR da min 54,5 mm
Min IR shoulder diameter (db min) 54,5 mm
Max shoulder diameter OR Da max 67,5 mm
Max OR shoulder diameter (Db max) 67,5 mm
Maxi fillet radius r1a 0,3 mm
Max shaft & housing fillet radius ra max 0,6 mm
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