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 55 mm D - External diameter 80 mm B - Bearing/Inner ring width 13 mm d1 - External diameter inner ring 63,1 mm d2 - External diameter inner ring 61,15 mm D1 - Inner diameter outer ring 73,71 mm D2 - Inner diameter outer ring 75,31 mm a - Charge load application point 17 mm α - Contact angle 17 ° rs - Min fillet radius 1 mm r1s - Min fillet radius 0,3 mm Precision class P4S Mass 0,177 kg
PRODUCT PERFORMANCE C - Dynamic load 10 kN C0 - Static load 7,6 kN Cu - Fatigue limit load 0,41 kN f0 - Coefficient 8.566 Axial displacement K Factor 1.05 Preload level 7 Preload value 0,05 kN Axial rigidity 50 N/µm Radial rigidity 250 N/µm Tmin - Min operating temperature -20 °C Tmax - Max operating temperature 120 °C N lim - Grease lubrication limit speed 24000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 13,805 Hz BPFI - Over rolling frequency on inner (60 rpm) 16,195 Hz BSF - Over rolling frequency on rolling element (60 rpm) 11,929 Hz BRF - Rotational frequency – rolling element (60 rpm) 5,965 Hz FTF - Rotational frequency - cage (60 rpm) 0,46 Hz
ABUTMENT da min - Min shoulder diameter IR 60,5 mm db min - Min IR shoulder diameter 60,5 mm Da max - Max shoulder diameter OR 74,5 mm Db max - Max OR shoulder diameter 74,5 mm r1a - Max fillet radius 0,3 mm ra max - Max shaft & housing fillet radius 1 mm
Industry Calcul Factors 
