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Spherical roller bearing, one-piece machined 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 25 mm D - External diameter 52 mm B - Bearing/Inner ring width 18 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 Associated sleeve reference H305 Radial clearance class C4 Mass 0,155 kg
PRODUCT PERFORMANCE C - Dynamic load 54,2 kN C0 - Static load 42,8 kN Cu - Fatigue limit load 5,2 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 14000 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) 5,241 Hz BPFI - Over rolling frequency on inner (60 rpm) 7,759 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 db - Min diameter for Sleeve 28 mm Ce - Min length fro Sleeve 5 mm Da max - Max shoulder diameter OR 46,4 mm ra max - Max shaft & housing fillet radius 1 mm
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