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High precision angular contact ball bearings

7012UCG/GLP42 - NTN

7012UCG/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 diameter60 mm
D - External diameter95 mm
B - Bearing/Inner ring width18 mm
d1 - External diameter inner ring71,9 mm
d2 - External diameter inner ring69,3 mm
D1 - Inner diameter outer ring83,1 mm
D2 - Inner diameter outer ring88,6 mm
a - Charge load application point19,4 mm
α - Contact angle15 °
rs - Min fillet radius1,1 mm
r1s - Min fillet radius0,6 mm
Precision classP42
Mass0,41 kg
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PRODUCT PERFORMANCE
C - Dynamic load40 kN
C0 - Static load32,5 kN
f0 - Coefficient15.7
N lim - Oil lubrication limit speed24200 tr/min
N lim - Grease lubrication limit speed15100 tr/min
Preload levelGL
Preload value0,069 kN
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR67 mm
Da max - Max shoulder diameter OR88 mm
Db max - Max OR shoulder diameter90,5 mm
r1a - Max fillet radius0,6 mm
ra max - Max shaft & housing fillet radius1 mm
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