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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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Technical datasheet

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PRODUCT DEFINITION
BrandSNR
d - Internal diameter25 mm
D - External diameter47 mm
B - Bearing/Inner ring width12 mm
d1 - External diameter inner ring32,2 mm
D1 - Inner diameter outer ring40,05 mm
D2 - Inner diameter outer ring43,05 mm
a - Charge load application point11 mm
α - Contact angle15 °
rs - Min fillet radius0,6 mm
r1s - Min fillet radius0,3 mm
Precision classP4
Mass0,076 kg
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PRODUCT PERFORMANCE
C - Dynamic load12,8 kN
C0 - Static load8,6 kN
Cu - Fatigue limit load0,48 kN
f0 - Coefficient14.677
Axial displacement K Factor1.61
Preload level7
Preload value0,07 kN
Axial rigidity39 N/µm
Radial rigidity217 N/µm
Tmin - Min operating temperature-30 °C
Tmax - Max operating temperature120 °C
Nlim - Oil lubrication limit speed49000 tr/min
Nlim - Grease lubrication limit speed32000 tr/min
BEARING FREQUENCIES
BPFO - Characteristic outer ring frequency (60 rpm)6,222 Hz
BPFI - Characteristic inner ring frequency (60 rpm)8,778 Hz
FTF - Characteristic cage frequency (60 rpm)0,415 Hz
BSF - Characteristic rolling element frequency (60 rpm)5,505 Hz
ABUTMENT
da min - Min shoulder diameter IR29,5 mm
db min - Min IR shoulder diameter29,5 mm
Da max - Max shoulder diameter OR42,5 mm
Db max - Max OR shoulder diameter42,5 mm
r1a - Max fillet radius0,3 mm
ra max - Max shaft & housing fillet radius0,6 mm
Product classification image
Calcul factors image

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