Skip to Header Skip to Main Content Skip to Footer
Tapered roller bearing, pressed steel cage
The single row tapered roller bearing is available in metric dimensions (ISO 355 and JIS B 1512 standards) and in inches (ABMA standard, metric series including J). The single row in tapered roller bearing range, is the most widely used and is generally mounted in opposition.
Log in To add this product to your basket Documentation Product information PRODUCT DEFINITION Brand SNR d - Internal diameter 30 mm D - External diameter 72 mm B - Bearing/Inner ring width 19 mm C - Outer ring width 14 mm T - Total width 20,75 mm d1 - External diameter inner ring 52,4 mm a - Charge load application point 23,05 mm rs - Min fillet radius 1,5 mm r1s - Min fillet radius 1,5 mm Mass 0,392 kg ISO 355 reference T7FB030
PRODUCT PERFORMANCE C - Dynamic load 57,2 kN A2 - Rating life coefficient 1 C0 - Static load 59,8 kN Cu - Fatigue limit load 7,3 kN e - Coefficient 0.83 Y0 - Static axial load coefficient 0.4 Y2 - Upper axial load coefficient 0.73 N ref - Reference thermal speed 6100 tr/min N lim - Mechanical Limit Speed 10000 tr/min Tmin - Min operating temperature -40 °C Tmax - Max operating temperature 120 °C
BEARING FREQUENCIES BPFO - Over rolling frequency on outer ring (60 rpm) 6,735 Hz BPFI - Over rolling frequency on inner (60 rpm) 9,265 Hz BSF - Over rolling frequency on rolling element (60 rpm) 5,404 Hz BRF - Rotational frequency – rolling element (60 rpm) 2,702 Hz FTF - Rotational frequency - cage (60 rpm) 0,421 Hz
ABUTMENT da max - Max shoulder diameter IR 39 mm db min - Min IR shoulder diameter 38,5 mm Da min - Min shoulder diameter OR 55 mm Da max - Max shoulder diameter OR 63,5 mm Db min - Min OR shoulder diameter 68 mm Ca - Min clearance 3 mm Cb - Min clearance 6,5 mm ra max - Max fillet radius 1,5 mm r1a - Max fillet radius 1,5 mm
Industry Calcul Factors 
