
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 information
PRODUCT DEFINITION | |
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Brand | NTN |
d - Internal diameter | 320 mm |
D - External diameter | 440 mm |
B - Bearing/Inner ring width | 72 mm |
C - Outer ring width | 63 mm |
T - Total width | 76 mm |
a - Charge load application point | 85 mm |
rs - Min fillet radius | 3 mm |
r1s - Min fillet radius | 3 mm |
Mass | 33,2 kg |
PRODUCT PERFORMANCE | |
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C - Dynamic load | 955 kN |
C0 - Static load | 1880 kN |
Cu - Fatigue limit load | 153 kN |
e - Coefficient | 0.39 |
Y0 - Static axial load coefficient | 0.85 |
Y2 - Upper axial load coefficient | 1.55 |
N lim - Oil lubrication limit speed | 900 tr/min |
N lim - Grease lubrication limit speed | 670 tr/min |
Tmin - Min operating temperature | -40 °C |
Tmax - Max operating temperature | 120 °C |
ABUTMENT | |
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Da min - Min shoulder diameter OR | 392 mm |
Da max - Max shoulder diameter OR | 426 mm |
Db min - Min OR shoulder diameter | 424,5 mm |
Ca - Min clearance | 13 mm |
Cb - Min clearance | 13 mm |
ra max - Max fillet radius | 3 mm |
r1a - Max fillet radius | 2,5 mm |