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 40 mm D - External diameter 80 mm B - Bearing/Inner ring width 18 mm d1 - External diameter inner ring 52,8 mm D1 - Inner diameter outer ring 67,6 mm D2 - Inner diameter outer ring 73,53 mm a - Charge load application point 17 mm α - Contact angle 15 ° rs - Min fillet radius 2 mm r1s - Min fillet radius 1 mm Precision class P4 Mass 0,37 kg
PRODUCT PERFORMANCE C - Dynamic load 36,2 kN C0 - Static load 25,2 kN Cu - Fatigue limit load 1,34 kN f0 - Coefficient 14.163 Axial displacement K Factor 1.47 Preload level 7 Preload value 0,185 kN Axial rigidity 58 N/µm Radial rigidity 334 N/µm Tmin - Min operating temperature -30 °C Tmax - Max operating temperature 120 °C N lim - Oil lubrication limit speed 28000 tr/min N lim - Grease lubrication limit speed 17500 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 5,254 Hz BPFI - Over rolling frequency on inner (60 rpm) 7,746 Hz BSF - Over rolling frequency on rolling element (60 rpm) 4,854 Hz BRF - Rotational frequency – rolling element (60 rpm) 2,427 Hz FTF - Rotational frequency - cage (60 rpm) 0,404 Hz
ABUTMENT da min - Min shoulder diameter IR 47 mm db min - Min IR shoulder diameter 47 mm Da max - Max shoulder diameter OR 73 mm Db max - Max OR shoulder diameter 73 mm r1a - Max fillet radius 1 mm ra max - Max shaft & housing fillet radius 2 mm
Industry Calcul Factors 
