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
20 mm
D - External diameter
52 mm
B - Bearing/Inner ring width
15 mm
C - Outer ring width
13 mm
T - Total width
16,25 mm
d1 - External diameter inner ring
34,7 mm
a - Charge load application point
11,3 mm
rs - Min fillet radius
1,5 mm
r1s - Min fillet radius
1,5 mm
Mass
0,165 kg
ISO 355 reference
T2FB020
PRODUCT PERFORMANCE
C - Dynamic load
36,3 kN
A2 - Rating life coefficient
1
C0 - Static load
33,2 kN
Cu - Fatigue limit load
4,05 kN
e - Coefficient
0.3
Y0 - Static axial load coefficient
1.1
Y2 - Upper axial load coefficient
2
N ref - Reference thermal speed
8200 tr/min
N lim - Mechanical Limit Speed
15000 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)
5,125 Hz
BPFI - Over rolling frequency on inner (60 rpm)
7,875 Hz
BSF - Over rolling frequency on rolling element (60 rpm)
4,429 Hz
BRF - Rotational frequency – rolling element (60 rpm)
