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 | NTN |
d - Internal diameter | 140 mm |
D - External diameter | 250 mm |
B - Bearing/Inner ring width | 68 mm |
C - Outer ring width | 58 mm |
T - Total width | 71,75 mm |
d1 - External diameter inner ring | 193 mm |
a - Charge load application point | 61 mm |
rs - Min fillet radius | 4 mm |
r1s - Min fillet radius | 3 mm |
Mass | 14,2 kg |
ISO 355 reference | T4FD140 |
PRODUCT PERFORMANCE | |
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C - Dynamic load | 675 kN |
C0 - Static load | 920 kN |
Cu - Fatigue limit load | 92 kN |
A2 - Rating life coefficient | 1 |
e - Coefficient | 0.44 |
Y0 - Static axial load coefficient | 0.76 |
Y2 - Upper axial load coefficient | 1.38 |
Nlim - Oil lubrication limit speed | 1900 tr/min |
Nlim - Grease lubrication limit speed | 1400 tr/min |
Tmin - Min operating temperature | -40 °C |
Tmax - Max operating temperature | 120 °C |
ABUTMENT | |
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da max - Max shoulder diameter IR | 158 mm |
db min - Min IR shoulder diameter | 158 mm |
Da min - Min shoulder diameter OR | 210 mm |
Da max - Max shoulder diameter OR | 236 mm |
Db min - Min OR shoulder diameter | 238 mm |
Ca - Min clearance | 9 mm |
Cb - Min clearance | 13,5 mm |
ra max - Max fillet radius | 3 mm |
r1a - Max fillet radius | 2,5 mm |