TIMKEN 34300/34478D
Double Row TIMKEN 34300/34478D Inch Tapered Roller Bearing
TIMKEN 34300/34478D consists of a single-piece (double)
outer ring 34478D and two single inner ring 34300.
This configuration offers a wide effective bearing spread to support loads created by overturning moments.
TIMKEN 34300/34478D 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 34300/34478D Technical Data
| Bearing Part | 34300/34478D | Bearing type: | Double row tapered roller bearing |
| Brand | TIMKEN | Other | Inch type |
| Inner(Cone) | 34300 | Dynamic C1 | 178000N |
| Outer(Cup) | 34478D | Factors e | 0.45 |
| Bore (d) | 76.2mm | Factors Y | 1.5 |
| O.D (D) | 121.442mm | Dynamic C90 | 26500N |
| Width(T) | 52.39mm | Dynamic Ca90 | 20500N |
| Dynamic C90(2) | 46100N | Factors K | 1.3 |
| Outer Ring Width(C) | 38.1mm | Factors Y2 | 2.23N |
| Origin | USA | Weight: | 1.98kg |
Timken 34300/34478D Drawing
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