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.
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Documentation
Product information
PRODUCT DEFINITION
Brand
SNR
d - Internal diameter
120 mm
D - External diameter
180 mm
B - Bearing/Inner ring width
38 mm
C - Outer ring width
29 mm
T - Total width
38 mm
d1 - External diameter inner ring
149,9 mm
a - Charge load application point
39,3 mm
rs - Min fillet radius
2,5 mm
r1s - Min fillet radius
2 mm
Mass
3,16 kg
PRODUCT PERFORMANCE
C - Dynamic load
248 kN
A2 - Rating life coefficient
1
C0 - Static load
395 kN
Cu - Fatigue limit load
42,7 kN
e - Coefficient
0.46
Y0 - Static axial load coefficient
0.72
Y2 - Upper axial load coefficient
1.31
N ref - Reference thermal speed
2500 tr/min
N lim - Mechanical Limit Speed
3700 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)
12,688 Hz
BPFI - Over rolling frequency on inner (60 rpm)
15,312 Hz
BSF - Over rolling frequency on rolling element (60 rpm)
10,116 Hz
BRF - Rotational frequency – rolling element (60 rpm)
