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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 62 mm B - Bearing/Inner ring width 12 mm d1 - External diameter inner ring 46,8 mm D1 - Inner diameter outer ring 55,2 mm D2 - Inner diameter outer ring 57,77 mm a - Charge load application point 18 mm α - Contact angle 25 ° rs - Min fillet radius 1 mm r1s - Min fillet radius 0,6 mm Precision class P4 Mass 0,11 kg
PRODUCT PERFORMANCE C - Dynamic load 13,6 kN C0 - Static load 11,2 kN Cu - Fatigue limit load 0,65 kN f0 - Coefficient 16.093 Axial displacement K Factor 0.65 Preload level 8 Preload value 0,36 kN Axial rigidity 110 N/µm Radial rigidity 233 N/µm Tmin - Min operating temperature -30 °C Tmax - Max operating temperature 120 °C N lim - Oil lubrication limit speed 31000 tr/min N lim - Grease lubrication limit speed 21000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 8,428 Hz BPFI - Over rolling frequency on inner (60 rpm) 10,572 Hz BSF - Over rolling frequency on rolling element (60 rpm) 7,929 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,965 Hz FTF - Rotational frequency - cage (60 rpm) 0,444 Hz
ABUTMENT da min - Min shoulder diameter IR 44,5 mm db min - Min IR shoulder diameter 44,5 mm Da max - Max shoulder diameter OR 57,5 mm Db max - Max OR shoulder diameter 57,5 mm r1a - Max fillet radius 0,3 mm ra max - Max shaft & housing fillet radius 0,6 mm
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