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7002HVUJ74 - SNR

7002HVUJ74

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) 15 mm
External diameter (D) 32 mm
Bearing/Inner ring width (B) 9 mm
External diameter inner ring d1 20,15 mm
Inner diameter outer ring (D1) 26,9 mm
Inner diameter outer ring D2 28,84 mm
Charge load application point a 10 mm
Contact angle α 25 °
Min fillet radius (rs) 0,3 mm
Min fillet radius r1s 0,3 mm
Coefficient f0 13.549
Precision class P4
Mass 0,028 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load (C) 6,3 kN
Static load (C0) 3,6 kN
Fatigue limit load (Cu) 0,21 kN
Axial displacement K Factor 0.97
Preload level 7
Preload value 55000 kN
Axial rigidity 56 N/µm
Radial rigidity 120 N/µm
Min operating temperature (Tmin) -30 °C
Max operating temperature (Tmax) 120 °C
Nlim (oil) 68000 tr/min
Nlim (grease) 45000 tr/min
Characteristic cage frequency, FTF 0,408 Hz
Characteristic rolling element frequency, BSF 4,768 Hz
Characteristic outer ring frequency, BPF0 5,306 Hz
Characteristic inner ring frequency, BPFI 7,694 Hz

ABUTMENT

Min shoulder diameter IR (da min) 17,5 mm
Min IR shoulder diameter (db min) 17,5 mm
Max shoulder diameter OR (Da max) 29,5 mm
Max OR shoulder diameter (Db max) 29,5 mm
Maxi fillet radius r1a 0,3 mm
Max shaft & housing fillet radius (ra max) 0,3 mm
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