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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 15 mm D - External diameter 35 mm B - Bearing/Inner ring width 11 mm d1 - External diameter inner ring 21,08 mm D1 - Inner diameter outer ring 29,02 mm D2 - Inner diameter outer ring 32,21 mm a - Charge load application point 11 mm α - Contact angle 25 ° rs - Min fillet radius 1 mm r1s - Min fillet radius 0,6 mm Precision class P4 Mass 0,044 kg
PRODUCT PERFORMANCE C - Dynamic load 8,7 kN C0 - Static load 4,7 kN Cu - Fatigue limit load 0,28 kN f0 - Coefficient 13.244 Axial displacement K Factor 0.97 Preload level 7 Preload value 0,075 kN Axial rigidity 62 N/µm Radial rigidity 131 N/µm Tmin - Min operating temperature -30 °C Tmax - Max operating temperature 120 °C N lim - Oil lubrication limit speed 58000 tr/min N lim - Grease lubrication limit speed 38000 tr/min
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 4,325 Hz BPFI - Over rolling frequency on inner (60 rpm) 6,675 Hz BSF - Over rolling frequency on rolling element (60 rpm) 4,05 Hz BRF - Rotational frequency – rolling element (60 rpm) 2,025 Hz FTF - Rotational frequency - cage (60 rpm) 0,393 Hz
ABUTMENT da min - Min shoulder diameter IR 19,5 mm db min - Min IR shoulder diameter 19,5 mm Da max - Max shoulder diameter OR 30,5 mm Db max - Max OR shoulder diameter 30,5 mm r1a - Max fillet radius 0,6 mm ra max - Max shaft & housing fillet radius 1 mm
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