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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 90 mm B - Bearing/Inner ring width 18 mm d1 - External diameter inner ring 66,8 mm d2 - External diameter inner ring 65 mm D1 - Inner diameter outer ring 79,91 mm D2 - Inner diameter outer ring 83,11 mm a - Charge load application point 20 mm α - Contact angle 17 ° rs - Min fillet radius 1,1 mm r1s - Min fillet radius 1 mm Precision class P4S Mass 0,396 kg
PRODUCT PERFORMANCE C - Dynamic load 16,6 kN C0 - Static load 11,4 kN Cu - Fatigue limit load 0,63 kN f0 - Coefficient 8.243 Axial displacement K Factor 1.02 Preload level 7 Preload value 0,08 kN Axial rigidity 61 N/µm Radial rigidity 298 N/µm Tmin - Min operating temperature -20 °C Tmax - Max operating temperature 120 °C N lim - Oil lubrication limit speed 30000 tr/min N lim - Grease lubrication limit speed 22000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 10,279 Hz BPFI - Over rolling frequency on inner (60 rpm) 12,721 Hz BSF - Over rolling frequency on rolling element (60 rpm) 8,906 Hz BRF - Rotational frequency – rolling element (60 rpm) 4,453 Hz FTF - Rotational frequency - cage (60 rpm) 0,447 Hz
ABUTMENT da min - Min shoulder diameter IR 62 mm db min - Min IR shoulder diameter 62 mm Da max - Max shoulder diameter OR 83 mm Db max - Max OR shoulder diameter 83 mm r1a - Max fillet radius 1 mm ra max - Max shaft & housing fillet radius 1 mm
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