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10R71920HVUJ74 - SNR

10R71920HVUJ74

High precision angular contact ball bearing, laminated resin cage centred on outer ring

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 100 mm
D - External diameter 140 mm
B - Bearing/Inner ring width 20 mm
d1 - External diameter inner ring 112,8 mm
D1 - Inner diameter outer ring 127,2 mm
D2 - Inner diameter outer ring 133,36 mm
a - Charge load application point 38 mm
α - Contact angle 25 °
rs - Min fillet radius 0,6 mm
r1s - Min fillet radius 0,6 mm
Precision class P4
Mass 0,8 kg
Brand SNR
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PRODUCT PERFORMANCE

C - Dynamic load 48,1 kN
C0 - Static load 53,4 kN
Cu - Fatigue limit load 2,75 kN
f0 - Coefficient 16.639
Axial displacement K Factor 0.44
Preload level 7
Preload value 0,41 kN
Axial rigidity 239 N/µm
Radial rigidity 516 N/µm
Tmin - Min operating temperature -30 °C
Tmax - Max operating temperature 120 °C
Nlim - Oil lubrication limit speed 13500 tr/min
Nlim - Grease lubrication limit speed 8800 tr/min
FTF - Characteristic cage frequency 0,455 Hz
BSF - Characteristic rolling element frequency 9,997 Hz
BPFO - Characteristic outer ring frequency 11,376 Hz
BPFI - Characteristic inner ring frequency 13,624 Hz

ABUTMENT

da min - Min shoulder diameter IR 104,5 mm
db min - Min IR shoulder diameter 104,5 mm
Da max - Max shoulder diameter OR 135,5 mm
Db max - Max OR shoulder diameter 135,5 mm
r1a - Max fillet radius 0,6 mm
ra max - Max shaft & housing fillet radius 0,6 mm
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