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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 70 mm D - External diameter 100 mm B - Bearing/Inner ring width 16 mm d1 - External diameter inner ring 80,1 mm d2 - External diameter inner ring 77,85 mm D1 - Inner diameter outer ring 91,96 mm D2 - Inner diameter outer ring 94,11 mm a - Charge load application point 28 mm α - Contact angle 25 ° rs - Min fillet radius 1 mm r1s - Min fillet radius 0,3 mm Precision class P4S Mass 0,33 kg
PRODUCT PERFORMANCE C - Dynamic load 12,4 kN C0 - Static load 10,2 kN Cu - Fatigue limit load 0,59 kN f0 - Coefficient 8.709 Axial displacement K Factor 0.54 Preload level 7 Preload value 0,1 kN Axial rigidity 135 N/µm Radial rigidity 297 N/µm Tmin - Min operating temperature -20 °C Tmax - Max operating temperature 120 °C N lim - Oil lubrication limit speed 23000 tr/min N lim - Grease lubrication limit speed 16000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 14,908 Hz BPFI - Over rolling frequency on inner (60 rpm) 17,092 Hz BSF - Over rolling frequency on rolling element (60 rpm) 13,214 Hz BRF - Rotational frequency – rolling element (60 rpm) 6,607 Hz FTF - Rotational frequency - cage (60 rpm) 0,466 Hz
ABUTMENT da min - Min shoulder diameter IR 75,5 mm db min - Min IR shoulder diameter 75,5 mm Da max - Max shoulder diameter OR 94,5 mm Db max - Max OR shoulder diameter 94,5 mm r1a - Max fillet radius 0,3 mm ra max - Max shaft & housing fillet radius 1 mm
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