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 50 mm D - External diameter 90 mm B - Bearing/Inner ring width 20 mm d1 - External diameter inner ring 62,45 mm D1 - Inner diameter outer ring 76,85 mm D2 - Inner diameter outer ring 82,83 mm a - Charge load application point 19 mm α - Contact angle 15 ° rs - Min fillet radius 1,1 mm r1s - Min fillet radius 0,6 mm Precision class P4 Mass 0,486 kg
PRODUCT PERFORMANCE C - Dynamic load 44,8 kN C0 - Static load 34 kN Cu - Fatigue limit load 1,82 kN f0 - Coefficient 14.56 Axial displacement K Factor 1.21 Preload level 7 Preload value 0,24 kN Axial rigidity 75 N/µm Radial rigidity 421 N/µm Tmin - Min operating temperature -30 °C Tmax - Max operating temperature 120 °C N lim - Oil lubrication limit speed 24000 tr/min N lim - Grease lubrication limit speed 15000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 6,186 Hz BPFI - Over rolling frequency on inner (60 rpm) 8,814 Hz BSF - Over rolling frequency on rolling element (60 rpm) 5,343 Hz BRF - Rotational frequency – rolling element (60 rpm) 2,672 Hz FTF - Rotational frequency - cage (60 rpm) 0,412 Hz
ABUTMENT da min - Min shoulder diameter IR 57 mm db min - Min IR shoulder diameter 57 mm Da max - Max shoulder diameter OR 83 mm Db max - Max OR shoulder diameter 83 mm r1a - Max fillet radius 0,6 mm ra max - Max shaft & housing fillet radius 1 mm
Industry Calcul Factors 
