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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 360 mm B - Bearing/Inner ring width 120 mm d2 - External diameter inner ring 0 mm D1 - Inner diameter outer ring 312,9 mm rs - Min fillet radius 4 mm Number of lubrication holes 3 ou 8 b - Groove width 20,25 mm k - Hole diameter 10 mm Radial clearance class C2 Mass 59 kg
PRODUCT PERFORMANCE C - Dynamic load 2200 kN C0 - Static load 2630 kN Cu - Fatigue limit load 236 kN e - Coefficient 0.32 Y0 - Static axial load coefficient 2.04 Y1 - Lower axial load coefficient 2.09 Y2 - Upper axial load coefficient 3.11 N ref - Reference thermal speed 1200 tr/min N lim - Mechanical Limit Speed 1800 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) 7,078 Hz BPFI - Over rolling frequency on inner (60 rpm) 9,922 Hz BSF - Over rolling frequency on rolling element (60 rpm) 5,679 Hz BRF - Rotational frequency – rolling element (60 rpm) 2,84 Hz FTF - Rotational frequency - cage (60 rpm) 0,416 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 187 mm Da max - Max shoulder diameter OR 343 mm ra max - Max shaft & housing fillet radius 3 mm
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