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Spherical roller bearing, polyamide cage, groove and lubrication holes on outer ring, tapered bore 1:12
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 40 mm D - External diameter 90 mm B - Bearing/Inner ring width 33 mm d2 - External diameter inner ring 52,5 mm D1 - Inner diameter outer ring 77 mm rs - Min fillet radius 1,5 mm Number of lubrication holes 3 b - Groove width 6 mm k - Hole diameter 3 mm Associated sleeve reference H2308 Radial clearance class CN Mass 0,98 kg
PRODUCT PERFORMANCE C - Dynamic load 169 kN C0 - Static load 152 kN Cu - Fatigue limit load 18,5 kN e - Coefficient 0.36 Y0 - Static axial load coefficient 1.83 Y1 - Lower axial load coefficient 1.87 Y2 - Upper axial load coefficient 2.79 N ref - Reference thermal speed 5800 tr/min N lim - Mechanical Limit Speed 7400 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) 5,672 Hz BPFI - Over rolling frequency on inner (60 rpm) 8,328 Hz BSF - Over rolling frequency on rolling element (60 rpm) 4,943 Hz BRF - Rotational frequency – rolling element (60 rpm) 2,472 Hz FTF - Rotational frequency - cage (60 rpm) 0,405 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 49 mm db - Min diameter for Sleeve 45 mm Ce - Min length fro Sleeve 5 mm Da max - Max shoulder diameter OR 81 mm ra max - Max shaft & housing fillet radius 1,5 mm
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