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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 120 mm D - External diameter 200 mm B - Bearing/Inner ring width 62 mm d2 - External diameter inner ring 138,9 mm D1 - Inner diameter outer ring 178,4 mm rs - Min fillet radius 2 mm Number of lubrication holes 3 b - Groove width 10,04 mm k - Hole diameter 4,5 mm Radial clearance class C4 Mass 7,76 kg
PRODUCT PERFORMANCE C - Dynamic load 663 kN C0 - Static load 820 kN Cu - Fatigue limit load 86,3 kN e - Coefficient 0.28 Y0 - Static axial load coefficient 2.37 Y1 - Lower axial load coefficient 2.43 Y2 - Upper axial load coefficient 3.61 N ref - Reference thermal speed 2600 tr/min N lim - Mechanical Limit Speed 3200 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) 9,141 Hz BPFI - Over rolling frequency on inner (60 rpm) 11,859 Hz BSF - Over rolling frequency on rolling element (60 rpm) 7,468 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,734 Hz FTF - Rotational frequency - cage (60 rpm) 0,435 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 131 mm Da max - Max shoulder diameter OR 189 mm ra max - Max shaft & housing fillet radius 2 mm
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