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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 140 mm D - External diameter 250 mm B - Bearing/Inner ring width 88 mm d2 - External diameter inner ring 162,6 mm D1 - Inner diameter outer ring 219,6 mm rs - Min fillet radius 3 mm Number of lubrication holes 3 ou 4 b - Groove width 12,64 mm k - Hole diameter 6 mm Radial clearance class C3 Mass 17,92 kg
PRODUCT PERFORMANCE C - Dynamic load 1140 kN C0 - Static load 1370 kN Cu - Fatigue limit load 136 kN e - Coefficient 0.33 Y0 - Static axial load coefficient 2.01 Y1 - Lower axial load coefficient 2.06 Y2 - Upper axial load coefficient 3.06 N ref - Reference thermal speed 1700 tr/min N lim - Mechanical Limit Speed 2400 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) 7,628 Hz BPFI - Over rolling frequency on inner (60 rpm) 10,372 Hz BSF - Over rolling frequency on rolling element (60 rpm) 6,258 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,129 Hz FTF - Rotational frequency - cage (60 rpm) 0,424 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 154 mm Da max - Max shoulder diameter OR 236 mm ra max - Max shaft & housing fillet radius 2,5 mm
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