TIMKEN 25578/25520D
Double Row TIMKEN 25578/25520D Inch Tapered Roller Bearing
TIMKEN 25578/25520D consists of a single-piece (double)
outer ring 25520D and two single inner ring 25578.
This configuration offers a wide effective bearing spread to support loads created by overturning moments.
TIMKEN 25578/25520D 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 25578/25520D Technical Data
| Bearing Part | 25578/25520D | Bearing type: | Double row tapered roller bearing |
| Brand | TIMKEN | Other | Inch type |
| Inner(Cone) | 25578 | Dynamic C1 | 158000N |
| Outer(Cup) | 25520D | Factors e | 0.33 |
| Bore (d) | 42.862mm | Factors Y | 2.02 |
| O.D (D) | 82.931mm | Dynamic C90 | 23500N |
| Width(T) | 57.15mm | Dynamic Ca90 | 13500N |
| Dynamic C90(2) | 40900N | Factors K | 1.74 |
| Outer Ring Width(C) | 47.625mm | Factors Y2 | 3N |
| Origin | USA | Weight: | 1.48kg |
Timken 25578/25520D Drawing
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