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Spherical roller bearing, one-piece machined 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 140 mm D - External diameter 225 mm B - Bearing/Inner ring width 68 mm D1 - Inner diameter outer ring 202 mm rs - Min fillet radius 2,1 mm Number of lubrication holes 3 ou 4 b - Groove width 10,12 mm k - Hole diameter 5 mm Radial clearance class C4 Mass 11,3 kg
PRODUCT PERFORMANCE C - Dynamic load 802 kN C0 - Static load 1030 kN Cu - Fatigue limit load 104 kN e - Coefficient 0.26 Y0 - Static axial load coefficient 2.5 Y1 - Lower axial load coefficient 2.55 Y2 - Upper axial load coefficient 3.8 N ref - Reference thermal speed 2200 tr/min N lim - Mechanical Limit Speed 2800 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) 9,64 Hz BPFI - Over rolling frequency on inner (60 rpm) 12,36 Hz BSF - Over rolling frequency on rolling element (60 rpm) 7,844 Hz BRF - Rotational frequency – rolling element (60 rpm) 3,922 Hz FTF - Rotational frequency - cage (60 rpm) 0,438 Hz
ABUTMENT da max - Max shoulder diameter IR 0 mm da min - Min shoulder diameter IR 152 mm Da max - Max shoulder diameter OR 213 mm ra max - Max shaft & housing fillet radius 2 mm
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