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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 170 mm D - External diameter 310 mm B - Bearing/Inner ring width 86 mm D1 - Inner diameter outer ring 276,4 mm rs - Min fillet radius 4 mm Number of lubrication holes 3 ou 4 b - Groove width 17,98 mm k - Hole diameter 8 mm Radial clearance class C4 Mass 28,177 kg
PRODUCT PERFORMANCE C - Dynamic load 1400 kN C0 - Static load 1610 kN Cu - Fatigue limit load 150 kN e - Coefficient 0.26 Y0 - Static axial load coefficient 2.54 Y1 - Lower axial load coefficient 2.6 Y2 - Upper axial load coefficient 3.87 N ref - Reference thermal speed 1900 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) 7,584 Hz BPFI - Over rolling frequency on inner (60 rpm) 10,416 Hz BSF - Over rolling frequency on rolling element (60 rpm) 6,106 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,053 Hz FTF - Rotational frequency - cage (60 rpm) 0,421 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 187 mm Da max - Max shoulder diameter OR 293 mm ra max - Max shaft & housing fillet radius 3 mm
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