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High precision angular contact ball bearings

7907UCG/GLP42 - NTN

7907UCG/GLP42

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 diameter55 mm
B - Bearing/Inner ring width10 mm
d1 - External diameter inner ring41,6 mm
d2 - External diameter inner ring39,9 mm
D1 - Inner diameter outer ring48,4 mm
D2 - Inner diameter outer ring51,7 mm
a - Charge load application point11,1 mm
α - Contact angle15 °
rs - Min fillet radius0,6 mm
r1s - Min fillet radius0,3 mm
Precision classP42
Mass0,07 kg
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PRODUCT PERFORMANCE
C - Dynamic load15,2 kN
C0 - Static load10,3 kN
f0 - Coefficient15.5
N lim - Oil lubrication limit speed41700 tr/min
N lim - Grease lubrication limit speed26000 tr/min
Preload levelGL
Preload value0,029 kN
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR39,5 mm
Da max - Max shoulder diameter OR50,5 mm
Db max - Max OR shoulder diameter52,5 mm
r1a - Max fillet radius0,3 mm
ra max - Max shaft & housing fillet radius0,6 mm
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Industry Calcul Factors

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