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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 12 mm D - External diameter 24 mm B - Bearing/Inner ring width 6 mm d1 - External diameter inner ring 15,4 mm d2 - External diameter inner ring 14,5 mm D1 - Inner diameter outer ring 20,05 mm D2 - Inner diameter outer ring 20,75 mm a - Charge load application point 7 mm α - Contact angle 25 ° rs - Min fillet radius 0,3 mm r1s - Min fillet radius 0,3 mm Precision class P4S Mass 0,011 kg
PRODUCT PERFORMANCE C - Dynamic load 1,41 kN C0 - Static load 0,62 kN Cu - Fatigue limit load 0,07 kN f0 - Coefficient 8.007 Axial displacement K Factor 1.21 Preload level 9 Preload value 0,07 kN Axial rigidity 51 N/µm Radial rigidity 103 N/µm Tmin - Min operating temperature -20 °C Tmax - Max operating temperature 120 °C N lim - Grease lubrication limit speed 75000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 6,559 Hz BPFI - Over rolling frequency on inner (60 rpm) 8,441 Hz BSF - Over rolling frequency on rolling element (60 rpm) 7,11 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,555 Hz FTF - Rotational frequency - cage (60 rpm) 0,437 Hz
ABUTMENT da min - Min shoulder diameter IR 14,5 mm db min - Min IR shoulder diameter 14,5 mm Da max - Max shoulder diameter OR 21,5 mm Db max - Max OR shoulder diameter 21,5 mm r1a - Max fillet radius 0,3 mm ra max - Max shaft & housing fillet radius 0,3 mm
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