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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 45 mm D - External diameter 85 mm B - Bearing/Inner ring width 23 mm d2 - External diameter inner ring 54,9 mm D1 - Inner diameter outer ring 75,6 mm rs - Min fillet radius 1,1 mm Number of lubrication holes 3 b - Groove width 5,83 mm k - Hole diameter 2,5 mm Associated sleeve reference H309 Radial clearance class C4 Mass 0,545 kg
PRODUCT PERFORMANCE C - Dynamic load 121 kN C0 - Static load 113 kN Cu - Fatigue limit load 13,8 kN e - Coefficient 0.26 Y0 - Static axial load coefficient 2.58 Y1 - Lower axial load coefficient 2.64 Y2 - Upper axial load coefficient 3.94 N ref - Reference thermal speed 7400 tr/min N lim - Mechanical Limit Speed 9800 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) 7,154 Hz BPFI - Over rolling frequency on inner (60 rpm) 9,846 Hz BSF - Over rolling frequency on rolling element (60 rpm) 6,068 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,034 Hz FTF - Rotational frequency - cage (60 rpm) 0,421 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 52 mm db - Min diameter for Sleeve 50 mm Ce - Min length fro Sleeve 7 mm Da max - Max shoulder diameter OR 78 mm ra max - Max shaft & housing fillet radius 1 mm
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