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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 20 mm D - External diameter 42 mm B - Bearing/Inner ring width 12 mm d1 - External diameter inner ring 26,6 mm D1 - Inner diameter outer ring 35,45 mm D2 - Inner diameter outer ring 38,58 mm a - Charge load application point 10 mm α - Contact angle 15 ° rs - Min fillet radius 1 mm r1s - Min fillet radius 1 mm Precision class P4 Mass 0,06 kg
PRODUCT PERFORMANCE C - Dynamic load 11,7 kN C0 - Static load 7,1 kN Cu - Fatigue limit load 0,32 kN f0 - Coefficient 14 Preload level 8 Preload value 0,18 kN Tmin - Min operating temperature -30 °C Tmax - Max operating temperature 120 °C
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 5,214 Hz BPFI - Over rolling frequency on inner (60 rpm) 7,786 Hz BSF - Over rolling frequency on rolling element (60 rpm) 4,691 Hz BRF - Rotational frequency – rolling element (60 rpm) 2,346 Hz FTF - Rotational frequency - cage (60 rpm) 0,401 Hz
ABUTMENT da min - Min shoulder diameter IR 24,5 mm db min - Min IR shoulder diameter 24,5 mm Da max - Max shoulder diameter OR 37,5 mm Db max - Max OR shoulder diameter 37,5 mm r1a - Max fillet radius 1 mm ra max - Max shaft & housing fillet radius 1 mm
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