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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 30 mm D - External diameter 55 mm B - Bearing/Inner ring width 13 mm d1 - External diameter inner ring 38,1 mm d2 - External diameter inner ring 36,15 mm D1 - Inner diameter outer ring 48,55 mm D2 - Inner diameter outer ring 50,15 mm a - Charge load application point 13 mm α - Contact angle 17 ° rs - Min fillet radius 1,5 mm r1s - Min fillet radius 1 mm Precision class P4S Mass 0,112 kg
PRODUCT PERFORMANCE C - Dynamic load 8,1 kN C0 - Static load 4,7 kN Cu - Fatigue limit load 0,27 kN f0 - Coefficient 7.983 Axial displacement K Factor 1.38 Preload level 7 Preload value 0,04 kN Axial rigidity 35 N/µm Radial rigidity 175 N/µm Tmin - Min operating temperature -20 °C Tmax - Max operating temperature 120 °C N lim - Grease lubrication limit speed 38000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 8,726 Hz BPFI - Over rolling frequency on inner (60 rpm) 11,274 Hz BSF - Over rolling frequency on rolling element (60 rpm) 7,384 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,692 Hz FTF - Rotational frequency - cage (60 rpm) 0,436 Hz
ABUTMENT da min - Min shoulder diameter IR 35,5 mm db min - Min IR shoulder diameter 35,5 mm Da max - Max shoulder diameter OR 49,5 mm Db max - Max OR shoulder diameter 49,5 mm r1a - Max fillet radius 0,6 mm ra max - Max shaft & housing fillet radius 1 mm
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