TIMKEN 8578/8520CD
Double Row TIMKEN 8578/8520CD Inch Tapered Roller Bearing
TIMKEN 8578/8520CD consists of a single-piece (double)
outer ring 8520CD and two single inner ring 8578.
This configuration offers a wide effective bearing spread to support loads created by overturning moments.
TIMKEN 8578/8520CD 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 8578/8520CD Technical Data
| Bearing Part | 8578/8520CD | Bearing type: | Double row tapered roller bearing |
| Brand | TIMKEN | Other | Inch type |
| Inner(Cone) | 8578 | Dynamic C1 | 918000N |
| Outer(Cup) | 8520CD | Factors e | 0.41 |
| Bore (d) | 241.3mm | Factors Y | 1.66 |
| O.D (D) | 327.025mm | Dynamic C90 | 137000N |
| Width(T) | 114.3mm | Dynamic Ca90 | 95200N |
| Dynamic C90(2) | 238000N | Factors K | 1.44 |
| Outer Ring Width(C) | 82.55mm | Factors Y2 | 2.47N |
| Origin | USA | Weight: | 23.96kg |
Timken 8578/8520CD Drawing
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