TIMKEN 9278/9220D
Double Row TIMKEN 9278/9220D Inch Tapered Roller Bearing
TIMKEN 9278/9220D consists of a single-piece (double)
outer ring 9220D and two single inner ring 9278.
This configuration offers a wide effective bearing spread to support loads created by overturning moments.
TIMKEN 9278/9220D can be used at fixed positions or allowed to fl oat in the housing bore to compensate for shaft expansion.
D suffi x has a groove with oil holes for lubrication through the outer ring
CD suffi x now replaces the DC suffi x listed for part numbers in previous publications. Same features as D suffi x, but CD also has groove with oil holes. One lubrication hole is counterbored to accept an anti-rotational pin.
Bearing 9278/9220D Technical Data
| Bearing Part | 9278/9220D | Bearing type: | Double row tapered roller bearing |
| Brand | TIMKEN | Other | Inch type |
| Inner(Cone) | 9278 | Dynamic C1 | 614000N |
| Outer(Cup) | 9220D | Factors e | 0.71 |
| Bore (d) | 68.262mm | Factors Y | 0.95 |
| O.D (D) | 161.925mm | Dynamic C90 | 91400N |
| Width(T) | 105.562mm | Dynamic Ca90 | 111000N |
| Dynamic C90(2) | 159000N | Factors K | 0.82 |
| Outer Ring Width(C) | 70.637mm | Factors Y2 | 1.42N |
| Origin | USA | Weight: | 9.42kg |
Timken 9278/9220D Drawing
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