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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 55 mm D - External diameter 100 mm B - Bearing/Inner ring width 21 mm d1 - External diameter inner ring 69 mm D1 - Inner diameter outer ring 85,8 mm D2 - Inner diameter outer ring 91,6 mm a - Charge load application point 21 mm α - Contact angle 15 ° rs - Min fillet radius 1,5 mm r1s - Min fillet radius 1 mm Precision class P4 Mass 0,62 kg
PRODUCT PERFORMANCE C - Dynamic load 55,5 kN C0 - Static load 42,9 kN Cu - Fatigue limit load 2,3 kN f0 - Coefficient 14.491 Axial displacement K Factor 1.17 Preload level 7 Preload value 0,3 kN Axial rigidity 84 N/µm Radial rigidity 472 N/µm Tmin - Min operating temperature -30 °C Tmax - Max operating temperature 120 °C N lim - Oil lubrication limit speed 21000 tr/min N lim - Grease lubrication limit speed 13500 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 6,164 Hz BPFI - Over rolling frequency on inner (60 rpm) 8,836 Hz BSF - Over rolling frequency on rolling element (60 rpm) 5,252 Hz BRF - Rotational frequency – rolling element (60 rpm) 2,626 Hz FTF - Rotational frequency - cage (60 rpm) 0,411 Hz
ABUTMENT da min - Min shoulder diameter IR 63,5 mm db min - Min IR shoulder diameter 63,5 mm Da max - Max shoulder diameter OR 91,5 mm Db max - Max OR shoulder diameter 91,5 mm r1a - Max fillet radius 1 mm ra max - Max shaft & housing fillet radius 1,5 mm
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