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High precision angular contact ball bearings

7003UG/GMP42 - NTN

7003UG/GMP42

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 diameter17 mm
D - External diameter35 mm
B - Bearing/Inner ring width10 mm
d1 - External diameter inner ring23 mm
d2 - External diameter inner ring21,6 mm
D1 - Inner diameter outer ring29 mm
D2 - Inner diameter outer ring32 mm
a - Charge load application point12,6 mm
α - Contact angle30 °
rs - Min fillet radius0,3 mm
r1s - Min fillet radius0,15 mm
Precision classP42
Mass0,037 kg
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PRODUCT PERFORMANCE
C - Dynamic load8,45 kN
C0 - Static load4,2 kN
N lim - Oil lubrication limit speed45000 tr/min
N lim - Grease lubrication limit speed33000 tr/min
Preload levelGM
Preload value0,196 kN
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR19,5 mm
Da max - Max shoulder diameter OR32,5 mm
Db max - Max OR shoulder diameter33,8 mm
r1a - Max fillet radius0,15 mm
ra max - Max shaft & housing fillet radius0,3 mm
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