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Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Availability:
2 in stock
Tapered roller bearing cone, 2-1/4 in (57.150 mm) bore, 1.1875 in (30.163 mm) width. NSK 39581, mates with cup 39520. Two cones, new old stock.
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2 in stock
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| MFR / Brand | NSK |
|---|---|
| MPN | 39581 |
| Model | 39581 cone |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 2.2500 in (57.150 mm) |
| Overall Width | 1.1875 in (30.163 mm) |
|---|---|
| Mpn Variants | 39581, NSK39581, 39581/39520 |
| Compatible With Replaces | Mating cup 39520, 39520P |
| Rolling Elements | Tapered Roller |
| Number Of Rows | 1 |
| Industry Terms | tapered roller bearing cone, inch taper cone, inner ring with rollers, taper bearing cone |
| Common Misspellings | NSK 39851, 39581 cone, NSK39581, 39 581 |
| Application Types | Axles; gearboxes; wheel hubs; agricultural and industrial machinery |
| Cross Reference 1 | Timken 39581 |
|---|---|
| Cross Reference 2 | Koyo 39581 |
| Cross Reference 3 | NTN 4T-39581 |
NSK 39581 is a single-row tapered roller bearing cone: the inner ring with its roller and cage assembly, in the inch 39500 series. The cone runs in a separate cup, the outer ring. This listing is two cones.
39581 — ABMA inch tapered roller bearing cone number, 2-1/4 in bore, shared by every maker building to the standard. The matching cup is 39520.
Bore Diameter: 2.2500 in (57.150 mm). Overall Width: 1.1875 in (30.163 mm). Rolling Elements: Tapered Roller. Number Of Rows: 1. Unit Quantity: 2 Pcs.
Cone bore 2-1/4 in and cone width 1.1875 in. The cone runs in a 39520 cup to form a complete 39581/39520 single-row tapered roller bearing.
Same ABMA 39581 cone number as Timken 39581, Koyo 39581 and NTN 4T-39581 cones. Mating cups: 39520 and 39520P.
The 39520 cup.
2-1/4 in, 57.150 mm.
Two cones.
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