Skip to Header Skip to Main Content Skip to Footer
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 45 mm D - External diameter 75 mm B - Bearing/Inner ring width 16 mm d1 - External diameter inner ring 54,7 mm d2 - External diameter inner ring 53 mm D1 - Inner diameter outer ring 67,85 mm D2 - Inner diameter outer ring 65,7 mm a - Charge load application point 17 mm α - Contact angle 17 ° rs - Min fillet radius 1 mm r1s - Min fillet radius 0,6 mm Precision class P4S Mass 0,238 kg
PRODUCT PERFORMANCE C - Dynamic load 10,8 kN C0 - Static load 7 kN Cu - Fatigue limit load 0,4 kN f0 - Coefficient 8.278 Axial displacement K Factor 1.23 Preload level 7 Preload value 0,055 kN Axial rigidity 44 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 37000 tr/min N lim - Grease lubrication limit speed 27000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 9,864 Hz BPFI - Over rolling frequency on inner (60 rpm) 12,136 Hz BSF - Over rolling frequency on rolling element (60 rpm) 9,161 Hz BRF - Rotational frequency – rolling element (60 rpm) 4,581 Hz FTF - Rotational frequency - cage (60 rpm) 0,448 Hz
ABUTMENT da min - Min shoulder diameter IR 50,5 mm db min - Min IR shoulder diameter 50,5 mm Da max - Max shoulder diameter OR 69,5 mm Db max - Max OR shoulder diameter 69,5 mm r1a - Max fillet radius 0,6 mm ra max - Max shaft & housing fillet radius 1 mm
Industry Calcul Factors 
