Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
Availability:
3 in stock
SKF 3478/3420 tapered roller bearing cone and cup set, 1-3/8 in bore, 3-1/8 in OD, 1.1563 in width. ABMA 3400 series inch set, open, single row.
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$47.11

3 in stock
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| MFR / Brand | SKF |
|---|---|
| Model | 3478 3420 |
| Bearing Type | Tapered Roller Bearing, Open |
| ID | 1.3750 in (34.925 mm) |
| OD | 3.1250 in (79.375 mm) |
| Width | 1.1563 in (29.370 mm) |
| Series | 3400 |
|---|---|
| Rolling Elements | Tapered Roller |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Harmonization Code | 8482.20.00.00 |
| Total Width | 1.1563 in (29.370 mm) |
| Mpn Variants | 3478/3420, 3478-3420, 3478 3420, 3478/20 |
| Additional Attributes | Cone Width: 1.1721 in (29.771 mm); Cup Width: 0.9375 in (23.813 mm); Cone: 3478; Cup: 3420 |
| Cross Reference 1 | Timken 3478/3420 |
|---|---|
| Cross Reference 2 | NSK 3478/3420 |
| Cross Reference 3 | NTN 4T-3478/3420 |
| Cross Reference 4 | Koyo 3478/3420 |
SKF 3478/3420 single-row inch tapered roller bearing, supplied as a set: 3478 cone (inner ring with roller and cage assembly) and 3420 cup (outer ring). Bore Diameter: 1.3750 in (34.925 mm). Outside Diameter: 3.1250 in (79.375 mm). Total Width: 1.1563 in (29.370 mm).
3478 — cone in the ABMA 3400 inch series, 1.3750 in bore.
3420 — matching cup, 3.1250 in OD, 0.9375 in wide.
Rolling Elements: Tapered Roller. Number Of Rows: 1. Bore Type: Straight. Closure Type: Open. Cone Width: 1.1721 in (29.771 mm). Cup Width: 0.9375 in (23.813 mm). The set carries combined radial and single-direction thrust load and is normally mounted in opposed pairs.
Unit Quantity: 1 set, cone and cup (2 pieces).
The 3478/3420 number is an ABMA inch designation used by several makers: Timken 3478/3420, NSK 3478/3420, NTN 4T-3478/3420, Koyo 3478/3420.
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Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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