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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 30 mm D - External diameter 47 mm B - Bearing/Inner ring width 9 mm d1 - External diameter inner ring 35,1 mm D1 - Inner diameter outer ring 41,9 mm D2 - Inner diameter outer ring 43,88 mm a - Charge load application point 13 mm α - Contact angle 25 ° rs - Min fillet radius 0,3 mm r1s - Min fillet radius 0,3 mm Precision class P4 Mass 0,047 kg
PRODUCT PERFORMANCE C - Dynamic load 7,4 kN C0 - Static load 5,6 kN Cu - Fatigue limit load 0,33 kN f0 - Coefficient 15.201 Axial displacement K Factor 0.78 Preload level 8 Preload value 0,19 kN Axial rigidity 71 N/µm Radial rigidity 154 N/µm Tmin - Min operating temperature -30 °C Tmax - Max operating temperature 120 °C N lim - Oil lubrication limit speed 42000 tr/min N lim - Grease lubrication limit speed 27000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 7,991 Hz BPFI - Over rolling frequency on inner (60 rpm) 10,009 Hz BSF - Over rolling frequency on rolling element (60 rpm) 7,983 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,992 Hz FTF - Rotational frequency - cage (60 rpm) 0,444 Hz
ABUTMENT da min - Min shoulder diameter IR 32,5 mm db min - Min IR shoulder diameter 32,5 mm Da max - Max shoulder diameter OR 44,5 mm Db max - Max OR shoulder diameter 44,5 mm r1a - Max fillet radius 0,3 mm ra max - Max shaft & housing fillet radius 0,3 mm
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