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10R71918HVUJ74 - SNR

10R71918HVUJ74

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 90 mm
D - External diameter 125 mm
B - Bearing/Inner ring width 18 mm
d1 - External diameter inner ring 101,2 mm
D1 - Inner diameter outer ring 113,75 mm
D2 - Inner diameter outer ring 119,24 mm
a - Charge load application point 34 mm
α - Contact angle 25 °
rs - Min fillet radius 0,6 mm
r1s - Min fillet radius 0,6 mm
Precision class P4
Mass 0,56 kg
Brand SNR
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PRODUCT PERFORMANCE

C - Dynamic load 37,9 kN
C0 - Static load 41,9 kN
Cu - Fatigue limit load 2,29 kN
f0 - Coefficient 16.708
Axial displacement K Factor 0.45
Preload level 7
Preload value 0,32 kN
Axial rigidity 215 N/µm
Radial rigidity 465 N/µm
Tmin - Min operating temperature -30 °C
Tmax - Max operating temperature 120 °C
Nlim - Oil lubrication limit speed 15000 tr/min
Nlim - Grease lubrication limit speed 9800 tr/min
FTF - Characteristic cage frequency 0,457 Hz
BSF - Characteristic rolling element frequency 10,339 Hz
BPFO - Characteristic outer ring frequency 11,869 Hz
BPFI - Characteristic inner ring frequency 14,131 Hz

ABUTMENT

da min - Min shoulder diameter IR 94,5 mm
db min - Min IR shoulder diameter 94,5 mm
Da max - Max shoulder diameter OR 120,5 mm
Db max - Max OR shoulder diameter 120,5 mm
r1a - Max fillet radius 0,6 mm
ra max - Max shaft & housing fillet radius 0,6 mm
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