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10R71920HVUJ74 - SNR

10R71920HVUJ74

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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PRODUCT DIMENSIONS

Internal diameter d 100 mm
External diameter D 140 mm
Bearing/Inner ring width(B) 20 mm
External diameter inner ring d1 112,8 mm
Inner diameter outer ring D1 127,2 mm
Inner diameter outer ring D2 133,36 mm
Charge load application point a 38 mm
Contact angle α 25 °
Min fillet radius rs 0,6 mm
Min fillet radius r1s 0,6 mm
Coefficient f0 16.639
Precision class P4
Mass 0,8 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load, C 48,1 kN
Static load, C0 53,4 kN
Fatigue limit load, Cu 2,75 kN
Axial displacement K Factor 0.44
Preload level 7
Preload value 0,41 kN
Axial rigidity 239 N/µm
Radial rigidity 516 N/µm
Min operating temperature, Tmin -30 °C
Max operating temperature, Tmax 120 °C
Nlim (oil) 13500 tr/min
Nlim (grease) 8800 tr/min
Characteristic cage frequency, FTF 0,455 Hz
Characteristic rolling element frequency, BSF 9,997 Hz
Characteristic outer ring frequency, BPF0 11,376 Hz
Characteristic inner ring frequency, BPFI 13,624 Hz

ABUTMENT

Min shoulder diameter IR da min 104,5 mm
Min IR shoulder diameter (db min) 104,5 mm
Max shoulder diameter OR Da max 135,5 mm
Max OR shoulder diameter (Db max) 135,5 mm
Maxi fillet radius r1a 0,6 mm
Max shaft & housing fillet radius ra max 0,6 mm
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