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ML71914HVUJ74S - SNR

ML71914HVUJ74S

High precision angular contact ball bearing, high speed series ML, 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
External diameter inner ring (d2) 77,85 mm
Inner diameter outer ring (D1) 91,96 mm
Inner diameter outer ring D2 94,11 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 8.709
Precision class P4S
Mass 0,33 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load (C) 12,4 kN
Static load (C0) 10,2 kN
Fatigue limit load (Cu) 0,59 kN
Axial displacement K Factor 0.54
Preload level 7
Preload value 0,1 kN
Axial rigidity 135 N/µm
Radial rigidity 297 N/µm
Min operating temperature (Tmin) -30 °C
Max operating temperature (Tmax) 120 °C
Nlim (oil) 23000 tr/min
Nlim (grease) 16000 tr/min
Characteristic cage frequency, FTF 0,466 Hz
Characteristic rolling element frequency, BSF 13,214 Hz
Characteristic outer ring frequency, BPF0 14,908 Hz
Characteristic inner ring frequency, BPFI 17,092 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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