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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 25 mm D - External diameter 52 mm B - Bearing/Inner ring width 18 mm d2 - External diameter inner ring 30,5 mm D1 - Inner diameter outer ring 45,5 mm rs - Min fillet radius 1 mm Number of lubrication holes 3 b - Groove width 3 mm k - Hole diameter 1,5 mm Radial clearance class C4 Mass 0,155 kg
PRODUCT PERFORMANCE C - Dynamic load 57,3 kN C0 - Static load 46,1 kN Cu - Fatigue limit load 5,6 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 13000 tr/min N lim - Mechanical Limit Speed 17000 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) 5,645 Hz BPFI - Over rolling frequency on inner (60 rpm) 8,355 Hz BSF - Over rolling frequency on rolling element (60 rpm) 4,85 Hz BRF - Rotational frequency – rolling element (60 rpm) 2,425 Hz FTF - Rotational frequency - cage (60 rpm) 0,403 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 30,6 mm Da max - Max shoulder diameter OR 46,4 mm ra max - Max shaft & housing fillet radius 1 mm
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