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7002CVUJ74A - SNR

7002CVUJ74A

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 DEFINITION

d - Internal diameter 15 mm
D - External diameter 32 mm
B - Bearing/Inner ring width 9 mm
d1 - External diameter inner ring 20,15 mm
D1 - Inner diameter outer ring 26,9 mm
D2 - Inner diameter outer ring 28,84 mm
a - Charge load application point 8 mm
α - Contact angle 15 °
rs - Min fillet radius 0,3 mm
r1s - Min fillet radius 0,3 mm
Precision class P4
Mass 0,028 kg
Brand SNR
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PRODUCT PERFORMANCE

C - Dynamic load 6,6 kN
C0 - Static load 3,8 kN
Cu - Fatigue limit load 0,21 kN
f0 - Coefficient 13.28
Axial displacement K Factor 2.08
Preload level 7
Preload value 0,032 kN
Axial rigidity 23 N/µm
Radial rigidity 133 N/µm
Tmin - Min operating temperature -30 °C
Tmax - Max operating temperature 120 °C
Nlim - Oil lubrication limit speed 74000 tr/min
Nlim - Grease lubrication limit speed 49000 tr/min
FTF - Characteristic cage frequency 0,402 Hz
BSF - Characteristic rolling element frequency 4,746 Hz
BPFO - Characteristic outer ring frequency 5,228 Hz
BPFI - Characteristic inner ring frequency 7,772 Hz

ABUTMENT

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