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NTN 687/672 Medium Size Tapered Roller Bearing
MODEL 687/672
$842.95 Each
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Type
Tapered Roller Bearing
Enclosure
Open
Style
Cone & Cup
Material
Case Carburized Steel
Configuration
One
Static Load Rating
87500 lbf
Precision Rating
Class 4
Y2 (Axial Load Factor)
1.28
Lubrication
w/o Oil Hole
Bore Type
Round
Cone Number
687
Dynamic Load Rating
55000 lbf
Operating Temperature Range
-40 to 250 °F
e (Axial Load Factor)
0.47
Cup Number
672
Technical Specifications
Type | Tapered Roller Bearing |
Bore Type | Round |
Material | Case Carburized Steel |
Style | Cone & Cup |
Precision Rating | Class 4 |
Cone Number | 687 |
Cup Number | 672 |
Configuration | One |
Lubrication | w/o Oil Hole |
e (Axial Load Factor) | 0.47 |
Y2 (Axial Load Factor) | 1.28 |
Static Load Rating | 87500 lbf390000 N390.00 kN |
Dynamic Load Rating | 55000 lbf245000 N245.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
B | 4.0000 in101.600 mm |
D | 6.6250 in168.275 mm |
Wo | 1.1875 in30.163 mm |
Wi | 1.6250 in41.275 mm |
W | 1.6250 in41.275 mm |
r | 0.1300 in3.300 mm |
R | 0.14 in3.5 mm |
a (Effective Load Center) | -0.1100 in-2.800 mm |
U | 4.65 in118.0 mm |
V | 4.41 in112.0 mm |
X | 6.30 in160.0 mm |
Z | 5.87 in149.0 mm |
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