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 is getting sub-ranges dedicated to requirements of speed, sealing, specific greasing, etc.
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PRODUCT DEFINITION | |
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Brand | SNR |
d - Internal diameter | 95 mm |
D - External diameter | 130 mm |
B - Bearing/Inner ring width | 18 mm |
d1 - External diameter inner ring | 106,2 mm |
D1 - Inner diameter outer ring | 118,75 mm |
D2 - Inner diameter outer ring | 124,24 mm |
a - Charge load application point | 24 mm |
α - Contact angle | 15 ° |
rs - Min fillet radius | 0,6 mm |
r1s - Min fillet radius | 0,6 mm |
Precision class | P4 |
Mass | 0,59 kg |
PRODUCT PERFORMANCE | |
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C - Dynamic load | 40,8 kN |
C0 - Static load | 46,3 kN |
Cu - Fatigue limit load | 2,33 kN |
f0 - Coefficient | 16.67 |
Axial displacement K Factor | 0.93 |
Preload level | 8 |
Preload value | 0,63 kN |
Axial rigidity | 149 N/µm |
Radial rigidity | 768 N/µm |
Tmin - Min operating temperature | -30 °C |
Tmax - Max operating temperature | 120 °C |
Nlim - Oil lubrication limit speed | 15500 tr/min |
Nlim - Grease lubrication limit speed | 10000 tr/min |
BEARING FREQUENCIES | |
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BPFO - Characteristic outer ring frequency (60 rpm) | 12,304 Hz |
BPFI - Characteristic inner ring frequency (60 rpm) | 14,696 Hz |
FTF - Characteristic cage frequency (60 rpm) | 0,456 Hz |
BSF - Characteristic rolling element frequency (60 rpm) | 10,817 Hz |
ABUTMENT | |
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da min - Min shoulder diameter IR | 99,5 mm |
db min - Min IR shoulder diameter | 99,5 mm |
Da max - Max shoulder diameter OR | 125,5 mm |
Db max - Max OR shoulder diameter | 125,5 mm |
r1a - Max fillet radius | 0,6 mm |
ra max - Max shaft & housing fillet radius | 0,6 mm |
