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Spherical roller bearing, 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 150 mm D - External diameter 250 mm B - Bearing/Inner ring width 80 mm d2 - External diameter inner ring 171,9 mm D1 - Inner diameter outer ring 222,4 mm rs - Min fillet radius 2,1 mm Number of lubrication holes 3 ou 4 b - Groove width 12,63 mm k - Hole diameter 6 mm Radial clearance class C5 Mass 15,72 kg
PRODUCT PERFORMANCE C - Dynamic load 1060 kN C0 - Static load 1350 kN Cu - Fatigue limit load 133 kN e - Coefficient 0.29 Y0 - Static axial load coefficient 2.3 Y1 - Lower axial load coefficient 2.35 Y2 - Upper axial load coefficient 3.5 N ref - Reference thermal speed 2000 tr/min N lim - Mechanical Limit Speed 2600 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) 9,105 Hz BPFI - Over rolling frequency on inner (60 rpm) 11,895 Hz BSF - Over rolling frequency on rolling element (60 rpm) 7,262 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,631 Hz FTF - Rotational frequency - cage (60 rpm) 0,434 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 162 mm Da max - Max shoulder diameter OR 238 mm ra max - Max shaft & housing fillet radius 2 mm
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