![31318A](https://eshop-api.ntn-snr.com/medias/515Wx515H-TRB-3.jpg?context=bWFzdGVyfGltYWdlc3wyMTMzOXxpbWFnZS9qcGVnfGhkNy9oMzgvMTAwOTI4NjA1Mzg5MTAvNTE1V3g1MTVIX1RSQl8zLmpwZ3xmMjRhMzhlMDJhYzdjM2RiZDYzNDQwMWYwOTViYjMxMDc5ZTFkNDc2MWIxMDA0ZTNjMWRiMjU2N2Y0NDA5ZGE4)
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 | 90 mm |
D - External diameter | 190 mm |
B - Bearing/Inner ring width | 43 mm |
C - Outer ring width | 30 mm |
T - Total width | 46,5 mm |
d1 - External diameter inner ring | 138,5 mm |
a - Charge load application point | 58,5 mm |
rs - Min fillet radius | 4 mm |
r1s - Min fillet radius | 3 mm |
ISO 355 reference | T7GB090 |
PRODUCT PERFORMANCE | |
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C - Dynamic load | 295 kN |
A2 - Rating life coefficient | 1 |
C0 - Static load | 357 kN |
Cu - Fatigue limit load | 39,6 kN |
e - Coefficient | 0.83 |
Y0 - Static axial load coefficient | 0.4 |
Y2 - Upper axial load coefficient | 0.73 |
Nref - Reference thermal speed | 2800 tr/min |
Nlim - Mechanical Limit Speed | 3700 tr/min |
Nlim - Oil lubrication limit speed | 2600 tr/min |
Nlim - Grease lubrication limit speed | 1900 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) | 6,718 Hz |
BPFI - Characteristic inner ring frequency (60 rpm) | 9,282 Hz |
FTF - Characteristic cage frequency (60 rpm) | 0,42 Hz |
BSF - Characteristic rolling element frequency (60 rpm) | 5,328 Hz |
ABUTMENT | |
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da max - Max shoulder diameter IR | 109 mm |
db min - Min IR shoulder diameter | 107 mm |
Da max - Max shoulder diameter OR | 176 mm |
Db min - Min OR shoulder diameter | 179 mm |
Ca - Min clearance | 6 mm |
Cb - Min clearance | 16,5 mm |
ra max - Max fillet radius | 3 mm |
r1a - Max fillet radius | 2,5 mm |
![Calcul factors image](https://eshop-api.ntn-snr.com/medias/TRB-1R-EN.jpg?context=bWFzdGVyfHJvb3R8MTk0Mzh8aW1hZ2UvanBlZ3xoNDEvaDE3Lzg5Mzc2OTE5Mzg4NDYvVFJCXzFSX0VOLmpwZ3w2YzcxY2IyZmI0NTg5NjM1ZTkxY2I4N2E5ZDE3ZTQzMWFmNjIyOGI5MjI4MGMxZDg2OTI1NTNmNTUzNTVlOGE2)