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7005CVUJ74 - SNR

7005CVUJ74

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) 25 mm
External diameter (D) 47 mm
Bearing/Inner ring width (B) 12 mm
External diameter inner ring d1 32,2 mm
Inner diameter outer ring (D1) 40,05 mm
Inner diameter outer ring D2 43,05 mm
Charge load application point a 11 mm
Contact angle α 15 °
Min fillet radius (rs) 0,6 mm
Min fillet radius r1s 0,3 mm
Coefficient f0 14.677
Precision class P4
Mass 0,076 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load (C) 12,8 kN
Static load (C0) 8,6 kN
Fatigue limit load (Cu) 0,48 kN
Axial displacement K Factor 1.61
Preload level 7
Preload value 0,07 kN
Axial rigidity 39 N/µm
Radial rigidity 217 N/µm
Min operating temperature (Tmin) -30 °C
Max operating temperature (Tmax) 120 °C
Nlim (oil) 49000 tr/min
Nlim (grease) 32000 tr/min
Characteristic cage frequency, FTF 0,415 Hz
Characteristic rolling element frequency, BSF 5,505 Hz
Characteristic outer ring frequency, BPF0 6,222 Hz
Characteristic inner ring frequency, BPFI 8,778 Hz

ABUTMENT

Min shoulder diameter IR (da min) 29,5 mm
Min IR shoulder diameter (db min) 29,5 mm
Max shoulder diameter OR (Da max) 42,5 mm
Max OR shoulder diameter (Db max) 42,5 mm
Maxi fillet radius r1a 0,3 mm
Max shaft & housing fillet radius (ra max) 0,6 mm
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