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7002UADG/GLP42 - NTN

7002UADG/GLP42

High precision angular contact ball bearing, moulded polyamide cage centred on balls

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 20,9 mm
d2 - External diameter inner ring 19,7 mm
D1 - Inner diameter outer ring 26,1 mm
D2 - Inner diameter outer ring 28,6 mm
a - Charge load application point 10 mm
α - Contact angle 25 °
rs - Min fillet radius 0,3 mm
r1s - Min fillet radius 0,15 mm
Precision class P42
Mass 0,03 kg
Brand NTN
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PRODUCT PERFORMANCE

C0 - Static load 3,55 kN
f0 - Coefficient 14.4
Nlim - Oil lubrication limit speed 69800 tr/min
Nlim - Grease lubrication limit speed 43200 tr/min
Preload level GL
Preload value 0,02 kN
Axial rigidity 38,7 N/µm
Radial rigidity 85 N/µm
Tmin - Min operating temperature -20 °C
Tmax - Max operating temperature 120 °C
FTF - Characteristic cage frequency 0,408 Hz
BSF - Characteristic rolling element frequency 4,773 Hz
BPFO - Characteristic outer ring frequency 4,899 Hz
BPFI - Characteristic inner ring frequency 7,101 Hz

ABUTMENT

da min - Min shoulder diameter IR 17,5 mm
Da max - Max shoulder diameter OR 29,5 mm
Db max - Max OR shoulder diameter 30,8 mm
r1a - Max fillet radius 0,15 mm
ra max - Max shaft & housing fillet radius 0,3 mm
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