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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 340 mm B - Bearing/Inner ring width 90 mm D1 - Inner diameter outer ring 310 mm rs - Min fillet radius 3 mm Number of lubrication holes 3 ou 8 b - Groove width 15,37 mm k - Hole diameter 7 mm Radial clearance class C3 Mass 31,8 kg
PRODUCT PERFORMANCE C - Dynamic load 1530 kN C0 - Static load 2110 kN Cu - Fatigue limit load 188 kN e - Coefficient 0.23 Y0 - Static axial load coefficient 2.89 Y1 - Lower axial load coefficient 2.95 Y2 - Upper axial load coefficient 4.4 N ref - Reference thermal speed 1600 tr/min N lim - Mechanical Limit Speed 2100 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) 10,615 Hz BPFI - Over rolling frequency on inner (60 rpm) 13,385 Hz BSF - Over rolling frequency on rolling element (60 rpm) 8,449 Hz BRF - Rotational frequency – rolling element (60 rpm) 4,225 Hz FTF - Rotational frequency - cage (60 rpm) 0,442 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 232,4 mm Da max - Max shoulder diameter OR 327,6 mm ra max - Max shaft & housing fillet radius 2,5 mm
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