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High precision angular contact ball bearings

7007UADG/GNP42 - NTN

7007UADG/GNP42

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 is getting sub-ranges dedicated to requirements of speed, sealing, specific greasing, etc.

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter35 mm
D - External diameter62 mm
B - Bearing/Inner ring width14 mm
d1 - External diameter inner ring44,2 mm
d2 - External diameter inner ring42,2 mm
D1 - Inner diameter outer ring52,8 mm
D2 - Inner diameter outer ring56,9 mm
a - Charge load application point18,4 mm
α - Contact angle25 °
rs - Min fillet radius1 mm
r1s - Min fillet radius0,6 mm
Precision classP42
Mass0,15 kg
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PRODUCT PERFORMANCE
C - Dynamic load21 kN
C0 - Static load13,9 kN
N lim - Oil lubrication limit speed33800 tr/min
N lim - Grease lubrication limit speed20900 tr/min
Preload levelGN
Preload value0,186 kN
Axial rigidity122,4 N/µm
Radial rigidity258,1 N/µm
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR40,5 mm
Da max - Max shoulder diameter OR56,5 mm
Db max - Max OR shoulder diameter57,5 mm
r1a - Max fillet radius0,6 mm
ra max - Max shaft & housing fillet radius1 mm
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