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Spherical roller bearing, polyamide 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 75 mm D - External diameter 130 mm B - Bearing/Inner ring width 31 mm d2 - External diameter inner ring 88,4 mm D1 - Inner diameter outer ring 117,8 mm rs - Min fillet radius 1,5 mm Number of lubrication holes 3 b - Groove width 7,37 mm k - Hole diameter 3,5 mm Radial clearance class CN Mass 1,644 kg
PRODUCT PERFORMANCE C - Dynamic load 244 kN C0 - Static load 249 kN Cu - Fatigue limit load 29,9 kN e - Coefficient 0.22 Y0 - Static axial load coefficient 3.06 Y1 - Lower axial load coefficient 3.13 Y2 - Upper axial load coefficient 4.67 N ref - Reference thermal speed 4600 tr/min N lim - Mechanical Limit Speed 6200 tr/min Tmin - Min operating temperature -20 °C Tmax - Max operating temperature 120 °C
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 8,127 Hz BPFI - Over rolling frequency on inner (60 rpm) 10,873 Hz BSF - Over rolling frequency on rolling element (60 rpm) 6,707 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,354 Hz FTF - Rotational frequency - cage (60 rpm) 0,428 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 84 mm Da max - Max shoulder diameter OR 121 mm ra max - Max shaft & housing fillet radius 1,5 mm
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