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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 70 mm D - External diameter 150 mm B - Bearing/Inner ring width 51 mm d2 - External diameter inner ring 86 mm D1 - Inner diameter outer ring 128,7 mm rs - Min fillet radius 2,1 mm Number of lubrication holes 3 b - Groove width 10 mm k - Hole diameter 5 mm Radial clearance class CN Mass 4,11 kg
PRODUCT PERFORMANCE C - Dynamic load 420 kN C0 - Static load 396 kN Cu - Fatigue limit load 46,7 kN e - Coefficient 0.34 Y0 - Static axial load coefficient 1.96 Y1 - Lower axial load coefficient 2 Y2 - Upper axial load coefficient 2.98 N ref - Reference thermal speed 3800 tr/min N lim - Mechanical Limit Speed 4500 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) 5,611 Hz BPFI - Over rolling frequency on inner (60 rpm) 8,389 Hz BSF - Over rolling frequency on rolling element (60 rpm) 4,723 Hz BRF - Rotational frequency – rolling element (60 rpm) 2,362 Hz FTF - Rotational frequency - cage (60 rpm) 0,401 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 82 mm Da max - Max shoulder diameter OR 138 mm ra max - Max shaft & housing fillet radius 2 mm
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