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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 170 mm D - External diameter 260 mm B - Bearing/Inner ring width 67 mm d2 - External diameter inner ring 191,8 mm D1 - Inner diameter outer ring 237,4 mm rs - Min fillet radius 2,1 mm Number of lubrication holes 3 ou 4 b - Groove width 12 mm k - Hole diameter 5 mm Radial clearance class C2 Mass 13 kg
PRODUCT PERFORMANCE C - Dynamic load 914 kN C0 - Static load 1240 kN Cu - Fatigue limit load 120 kN e - Coefficient 0.22 Y0 - Static axial load coefficient 3.01 Y1 - Lower axial load coefficient 3.07 Y2 - Upper axial load coefficient 4.58 N ref - Reference thermal speed 2200 tr/min N lim - Mechanical Limit Speed 2700 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) 11,115 Hz BPFI - Over rolling frequency on inner (60 rpm) 13,886 Hz BSF - Over rolling frequency on rolling element (60 rpm) 8,817 Hz BRF - Rotational frequency – rolling element (60 rpm) 4,409 Hz FTF - Rotational frequency - cage (60 rpm) 0,445 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 180,2 mm Da max - Max shoulder diameter OR 249,8 mm ra max - Max shaft & housing fillet radius 2 mm
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