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Spherical roller bearing, with central rib on inner ring, pressed steel cage, groove and lubrication holes on outer ring
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 180 mm D - External diameter 300 mm B - Bearing/Inner ring width 118 mm d2 - External diameter inner ring 200,263 mm D1 - Inner diameter outer ring 260,4 mm rs - Min fillet radius 3 mm Number of lubrication holes 3 ou 4 b - Groove width 15,333 mm k - Hole diameter 7 mm Radial clearance class C4 Mass 32,13 kg
PRODUCT PERFORMANCE C - Dynamic load 1600 kN C0 - Static load 2180 kN Cu - Fatigue limit load 204 kN e - Coefficient 0.36 Y0 - Static axial load coefficient 1.83 Y1 - Lower axial load coefficient 1.87 Y2 - Upper axial load coefficient 2.79 N ref - Reference thermal speed 1200 tr/min N lim - Mechanical Limit Speed 1700 tr/min Tmin - Min operating temperature -40 °C Tmax - Max operating temperature 200 °C
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 8,703 Hz BPFI - Over rolling frequency on inner (60 rpm) 11,297 Hz BSF - Over rolling frequency on rolling element (60 rpm) 7,373 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,687 Hz FTF - Rotational frequency - cage (60 rpm) 0,435 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 194 mm Da max - Max shoulder diameter OR 286 mm ra max - Max shaft & housing fillet radius 2,5 mm
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