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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 D1 - Inner diameter outer ring 46,95 mm D2 - Inner diameter outer ring 50,93 mm a - Charge load application point 12 mm α - Contact angle 15 ° rs - Min fillet radius 1,5 mm r1s - Min fillet radius 1 mm Precision class P4 Mass 0,112 kg
PRODUCT PERFORMANCE C - Dynamic load 16,4 kN C0 - Static load 11,7 kN Cu - Fatigue limit load 0,53 kN f0 - Coefficient 14.9 Axial displacement K Factor 1.52 Preload level 8 Preload value 0,25 kN Axial rigidity 43 N/µm Radial rigidity 249 N/µm Tmin - Min operating temperature -30 °C Tmax - Max operating temperature 120 °C N lim - Oil lubrication limit speed 41000 tr/min N lim - Grease lubrication limit speed 27000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 6,701 Hz BPFI - Over rolling frequency on inner (60 rpm) 9,299 Hz BSF - Over rolling frequency on rolling element (60 rpm) 5,792 Hz BRF - Rotational frequency – rolling element (60 rpm) 2,896 Hz FTF - Rotational frequency - cage (60 rpm) 0,419 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 1 mm ra max - Max shaft & housing fillet radius 1,5 mm
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