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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 180 mm D - External diameter 280 mm B - Bearing/Inner ring width 100 mm d2 - External diameter inner ring 202,4 mm D1 - Inner diameter outer ring 249 mm rs - Min fillet radius 2,1 mm Number of lubrication holes 3 ou 4 b - Groove width 11,8 mm k - Hole diameter 5 mm Radial clearance class C4 Mass 22,9 kg
PRODUCT PERFORMANCE C - Dynamic load 1270 kN C0 - Static load 1830 kN Cu - Fatigue limit load 173 kN e - Coefficient 0.31 Y0 - Static axial load coefficient 2.16 Y1 - Lower axial load coefficient 2.21 Y2 - Upper axial load coefficient 3.29 N ref - Reference thermal speed 1500 tr/min N lim - Mechanical Limit Speed 2200 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) 10,649 Hz BPFI - Over rolling frequency on inner (60 rpm) 13,351 Hz BSF - Over rolling frequency on rolling element (60 rpm) 8,592 Hz BRF - Rotational frequency – rolling element (60 rpm) 4,296 Hz FTF - Rotational frequency - cage (60 rpm) 0,444 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 190,2 mm Da max - Max shoulder diameter OR 269,8 mm ra max - Max shaft & housing fillet radius 2 mm
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