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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.
Log in To add this product to your basket Documentation Product information PRODUCT DEFINITION Brand SNR d - Internal diameter 80 mm D - External diameter 125 mm B - Bearing/Inner ring width 22 mm d1 - External diameter inner ring 94,3 mm D1 - Inner diameter outer ring 110,7 mm D2 - Inner diameter outer ring 117,49 mm a - Charge load application point 25 mm α - Contact angle 15 ° rs - Min fillet radius 1,1 mm r1s - Min fillet radius 0,6 mm Precision class P4 Mass 0,85 kg
PRODUCT PERFORMANCE C - Dynamic load 58,7 kN C0 - Static load 55,3 kN Cu - Fatigue limit load 2,95 kN f0 - Coefficient 15.732 Axial displacement K Factor 1.01 Preload level 7 Preload value 0,31 kN Axial rigidity 98 N/µm Radial rigidity 564 N/µm Tmin - Min operating temperature -30 °C Tmax - Max operating temperature 120 °C N lim - Oil lubrication limit speed 17000 tr/min N lim - Grease lubrication limit speed 11000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 8,728 Hz BPFI - Over rolling frequency on inner (60 rpm) 11,272 Hz BSF - Over rolling frequency on rolling element (60 rpm) 7,473 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,737 Hz FTF - Rotational frequency - cage (60 rpm) 0,436 Hz
ABUTMENT da min - Min shoulder diameter IR 87 mm db min - Min IR shoulder diameter 87 mm Da max - Max shoulder diameter OR 118 mm Db max - Max OR shoulder diameter 118 mm r1a - Max fillet radius 0,6 mm ra max - Max shaft & housing fillet radius 1 mm
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