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Spherical roller bearing, pressed steel 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 80 mm B - Bearing/Inner ring width 23 mm d2 - External diameter inner ring 50,2 mm D1 - Inner diameter outer ring 70,8 mm rs - Min fillet radius 1,1 mm Number of lubrication holes 3 b - Groove width 5,38 mm k - Hole diameter 2,5 mm Associated sleeve reference H308 Radial clearance class CN Mass 0,5 kg
PRODUCT PERFORMANCE C - Dynamic load 116 kN C0 - Static load 105 kN Cu - Fatigue limit load 12,8 kN e - Coefficient 0.27 Y0 - Static axial load coefficient 2.41 Y1 - Lower axial load coefficient 2.47 Y2 - Upper axial load coefficient 3.68 N ref - Reference thermal speed 8200 tr/min N lim - Mechanical Limit Speed 11000 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) 6,64 Hz BPFI - Over rolling frequency on inner (60 rpm) 9,36 Hz BSF - Over rolling frequency on rolling element (60 rpm) 5,618 Hz BRF - Rotational frequency – rolling element (60 rpm) 2,809 Hz FTF - Rotational frequency - cage (60 rpm) 0,415 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 47 mm db - Min diameter for Sleeve 44 mm Ce - Min length fro Sleeve 5 mm Da max - Max shoulder diameter OR 73 mm ra max - Max shaft & housing fillet radius 1 mm
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