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The spherical roller bearing withstands significant loads and misalignments . This type of roller bearing is well adapted to harsh operating conditions : impacts or vibrations (crushers, vibrating screens, heavy handling, etc.). With the ULTAGE design, NTN offers as standard, unsurpassed endurance and longevity.
Log in To add this product to your basket Documentation Product information PRODUCT DEFINITION Brand SNR d - Internal diameter 80 mm D - External diameter 140 mm B - Bearing/Inner ring width 40 mm d2 - External diameter inner ring 91,3 mm D1 - Inner diameter outer ring 131,5 mm rs - Min fillet radius 2 mm Number of lubrication holes 3 b - Groove width 7,87 mm k - Hole diameter 3,5 mm Radial clearance class C4 Mass 2,43 kg
PRODUCT PERFORMANCE C - Dynamic load 278 kN C0 - Static load 287 kN Cu - Fatigue limit load 33,8 kN e - Coefficient 0.22 Y0 - Static axial load coefficient 3.07 Y1 - Lower axial load coefficient 3.14 Y2 - Upper axial load coefficient 4.67 N lim - Mechanical Limit Speed 1200 tr/min Tmin - Min operating temperature -20 °C Tmax - Max operating temperature 120 °C
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 8,123 Hz BPFI - Over rolling frequency on inner (60 rpm) 10,877 Hz BSF - Over rolling frequency on rolling element (60 rpm) 6,684 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,342 Hz FTF - Rotational frequency - cage (60 rpm) 0,428 Hz
ABUTMENT da max - Max shoulder diameter IR 91,3 mm da min - Min shoulder diameter IR 91 mm db - Min diameter for Sleeve 0 mm Da max - Max shoulder diameter OR 131,5 mm ra max - Max shaft & housing fillet radius 2 mm
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