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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 40 mm D - External diameter 68 mm B - Bearing/Inner ring width 15 mm d1 - External diameter inner ring 49,2 mm d2 - External diameter inner ring 46,9 mm D1 - Inner diameter outer ring 60,91 mm D2 - Inner diameter outer ring 63,31 mm a - Charge load application point 16 mm α - Contact angle 17 ° rs - Min fillet radius 1,5 mm r1s - Min fillet radius 1 mm Precision class P4S Mass 0,185 kg
PRODUCT PERFORMANCE C - Dynamic load 10,9 kN C0 - Static load 6,9 kN Cu - Fatigue limit load 0,4 kN f0 - Coefficient 8.148 Axial displacement K Factor 1.23 Preload level 7 Preload value 0,055 kN Axial rigidity 43 N/µm Radial rigidity 218 N/µm Tmin - Min operating temperature -30 °C Tmax - Max operating temperature 120 °C N lim - Oil lubrication limit speed 41000 tr/min N lim - Grease lubrication limit speed 30000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 9,747 Hz BPFI - Over rolling frequency on inner (60 rpm) 12,253 Hz BSF - Over rolling frequency on rolling element (60 rpm) 8,285 Hz BRF - Rotational frequency – rolling element (60 rpm) 4,143 Hz FTF - Rotational frequency - cage (60 rpm) 0,443 Hz
ABUTMENT da min - Min shoulder diameter IR 45,5 mm db min - Min IR shoulder diameter 45,5 mm Da max - Max shoulder diameter OR 62,5 mm Db max - Max OR shoulder diameter 62,5 mm r1a - Max fillet radius 0,6 mm ra max - Max shaft & housing fillet radius 1 mm
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