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Spherical roller bearing, one-piece machined 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 220 mm D - External diameter 400 mm B - Bearing/Inner ring width 108 mm D1 - Inner diameter outer ring 357,7 mm rs - Min fillet radius 4 mm Number of lubrication holes 3 ou 8 b - Groove width 20,56 mm k - Hole diameter 11 mm Radial clearance class C4 Mass 59,474 kg
PRODUCT PERFORMANCE C - Dynamic load 2210 kN C0 - Static load 2690 kN Cu - Fatigue limit load 232 kN e - Coefficient 0.25 Y0 - Static axial load coefficient 2.68 Y1 - Lower axial load coefficient 2.74 Y2 - Upper axial load coefficient 4.08 N ref - Reference thermal speed 1300 tr/min N lim - Mechanical Limit Speed 2000 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) 8,058 Hz BPFI - Over rolling frequency on inner (60 rpm) 10,942 Hz BSF - Over rolling frequency on rolling element (60 rpm) 6,353 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,177 Hz FTF - Rotational frequency - cage (60 rpm) 0,424 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 237 mm Da max - Max shoulder diameter OR 383 mm ra max - Max shaft & housing fillet radius 3 mm
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