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.
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PRODUCT DEFINITION | |
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Brand | SNR |
d - Internal diameter | 70 mm |
D - External diameter | 125 mm |
B - Bearing/Inner ring width | 24 mm |
C - Outer ring width | 21 mm |
T - Total width | 26,25 mm |
d1 - External diameter inner ring | 94,8 mm |
a - Charge load application point | 26,1 mm |
rs - Min fillet radius | 2 mm |
r1s - Min fillet radius | 1,5 mm |
Mass | 1,261 kg |
ISO 355 reference | T3EB070 |
PRODUCT PERFORMANCE | |
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C - Dynamic load | 138 kN |
A2 - Rating life coefficient | 1 |
C0 - Static load | 174 kN |
Cu - Fatigue limit load | 21,2 kN |
e - Coefficient | 0.42 |
Y0 - Static axial load coefficient | 0.79 |
Y2 - Upper axial load coefficient | 1.43 |
Nref - Reference thermal speed | 3600 tr/min |
Nlim - Mechanical Limit Speed | 5800 tr/min |
Tmin - Min operating temperature | -40 °C |
Tmax - Max operating temperature | 120 °C |
BEARING FREQUENCIES | |
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BPFO - Characteristic outer ring frequency (60 rpm) | 8,576 Hz |
BPFI - Characteristic inner ring frequency (60 rpm) | 11,424 Hz |
FTF - Characteristic cage frequency (60 rpm) | 0,429 Hz |
BSF - Characteristic rolling element frequency (60 rpm) | 6,627 Hz |
ABUTMENT | |
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da max - Max shoulder diameter IR | 81 mm |
db min - Min IR shoulder diameter | 80 mm |
Da min - Min shoulder diameter OR | 110 mm |
Da max - Max shoulder diameter OR | 116,5 mm |
Db min - Min OR shoulder diameter | 118 mm |
Ca - Min clearance | 4 mm |
Cb - Min clearance | 5 mm |
ra max - Max fillet radius | 2 mm |
r1a - Max fillet radius | 1,5 mm |

Documentation