M270749/M270710CD single row tapered roller bearing
Specifications
Series | M270700 |
Cone Part Number | M270749 |
Cup Part Number | M270710CD |
Design Units | Imperial |
Bearing Weight | 543.68 lb246.608 Kg |
Cage Type | Pin-Type |
Ab - Cage-Cone Frontface Clearance | 0.34 in8.6 mm |
Dimensions
d - Bore | 17.6250 in447.675 mm |
D - Cup Outer Diameter | 25.0000 in635.000 mm |
B - Cone Width | 4.7500 in120.650 mm |
C - Double Cup Width | 8.1250 in206.375 mm |
T - Bearing Width across Cones | 10.1250 in257.175 mm |
Abutment and Fillet Dimensions
| R - Cone Backface "To Clear" Radius1 | 0.25 in6.400 mm |
| r - Cup Frontface "To Clear" Radius2 | 0.06 in1.5 mm |
db - Cone Backface Backing Diameter | 19.06 in484.10 mm |
Da - Cup Frontface Backing Diameter | 23.98 in605.03 mm |
Aa - Cage-Cone Backface Clearance | 0.31 in7.9 mm |
Basic Load Ratings
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 | 191000 lbf849000 N |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 | 1280000 lbf5700000 N |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 | 332000 lbf1480000 N |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 109000 lbf484000 N |
Factors
| K - Factor7 | 1.76 |
| e - ISO Factor8 | 0.7 |
| Y1 - ISO Factor9 | 0.971.44 |
| Y2 - ISO Factor10 | 1.44 |
| G1 - Heat Generation Factor (Roller-Raceway)11 | 6870 |
| Cg - Geometry Factor12 | 0.246 |
This has a one-piece (double) outer ring and two single inner
rings. It is usually supplied complete with an inner-ring spacer as
a pre-set assembly. This configuration gives a wide effective
bearing spread and is frequently chosen for applications where
overturning moments are a significant load component. TDO bearings
can be used in fixed (locating) positions or allowed to float in
the housing bore, for example, to compensate for shaft expansion.
TDO CD outer rings also are available in most sizes. These outer
rings have holes in the O.D. that permit the use of pins to prevent
outer ring rotation in the housing. M270749/M270710CD is widely
used in automotive,rolling mill,mining, metallurgy,plastics
machinery and other industries. If you want to know more about
M270749/M270710CD , welcome you contact us freely .
