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Tapered roller bearing cup, 15-1/8 in outside diameter, 5-5/8 in wide, single row. Cup only, 1 Pc.
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| MFR / Brand | Timken |
|---|---|
| MPN | NP986898-20D03 |
| Model | NP-986898 20D03 |
| Bearing Type | Tapered Roller Bearing Cup |
| OD | 15-1/8 in |
| Width | 5-5/8 in |
| Material | Steel |
|---|---|
| Condition | New |
| Duraspexx | DURASPEXX |
| Series | 895 |
| Base Number | 986898 |
| Industry Terms | Tapered roller cup; taper bearing cup; bearing race; outer race; wide cup |
| Common Misspellings | Timkin; Timpken; NP98698-20D03; NP986898 20D3 |
| Application Types | Large industrial shafts; mill and press equipment; heavy gearboxes |
| Mpn Variants | NP986898-20D03; NP986898; NP 986898; 986898; NP986898 20D03 |
| Manufacturer Status | Timken tapered roller programme, NP series |
| Number Of Rows | 1 |
| Harmonization Code | 8482.20.00 |
| Cup Part Number | NP986898 |
| Design Units | Inch |
| Bearing Class | Class 2 |
| Bearing Material | Bearing steel |
| Part Number | NP986898-20D03 |
| Cage Type | Stamped Steel |
| Cross Reference 1 | Timken NP986898 |
|---|---|
| Cross Reference 2 | 20D03 (unverified trailing designation, retained as a search term) |
A Timken NP986898-20D03 tapered roller bearing cup: the outer race of a tapered roller bearing, 15-1/8 in outside diameter by 5-5/8 in wide. Cup only. A cup carries no rollers of its own and runs against a matching cone, which is a separate part number.
NP is a Timken part-numbering prefix used on tapered roller components outside the classic inch series, and 986898 is the cup base number.
A cup this wide relative to its diameter puts a long raceway into the housing, which spreads the roller load over more length and lowers contact stress for a given load. The trade is that the housing bore has to hold size and roundness over that whole length, so bore preparation matters more than on a narrow cup.
One cup, single row.
The cup is pressed into the housing bore on the cup face rather than the raceway, and seated square against its shoulder. Over a 5-5/8 in seat the cup is drawn in evenly rather than started on one side. Running clearance is set against the mating cone on assembly.
The cup base number is 986898. Cup and cone raceway angles are matched between the two halves of a given Timken pairing, so a cup is qualified by its base number rather than by outside diameter and width alone.
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