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
30 mm
D - External diameter
62 mm
B - Bearing/Inner ring width
20 mm
C - Outer ring width
17 mm
T - Total width
21,25 mm
d1 - External diameter inner ring
45,5 mm
a - Charge load application point
15,65 mm
rs - Min fillet radius
1 mm
r1s - Min fillet radius
1 mm
Mass
0,287 kg
ISO 355 reference
T3DC030
PRODUCT PERFORMANCE
C - Dynamic load
56,8 kN
A2 - Rating life coefficient
1
C0 - Static load
63,7 kN
Cu - Fatigue limit load
7,8 kN
e - Coefficient
0.37
Y0 - Static axial load coefficient
0.88
Y2 - Upper axial load coefficient
1.6
N ref - Reference thermal speed
6700 tr/min
N lim - Mechanical Limit Speed
12000 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)
7,119 Hz
BPFI - Over rolling frequency on inner (60 rpm)
9,881 Hz
BSF - Over rolling frequency on rolling element (60 rpm)
5,814 Hz
BRF - Rotational frequency – rolling element (60 rpm)
