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SKFTapered Roller Bearing Cone and Cup Set – 1-3/8 in ID, 3-1/8 in OD, 1.1563 in Width, 3400 Series

Condition: New – Open box
Condition Note: Made In Britain, New Old Stock, Stained, We Have The Parts To Make Complete Sets Or Assemblies For Any Part Number, Contact Us

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.

List Price

$47.11

3 in stock

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Specifications

Key Specifications

MFR / BrandSKF
Model3478 3420
Bearing TypeTapered Roller Bearing, Open
ID1.3750 in (34.925 mm)
OD3.1250 in (79.375 mm)
Width1.1563 in (29.370 mm)

Technical Specifications

Series3400
Rolling ElementsTapered Roller
Number Of Rows1
Bore TypeStraight
Harmonization Code8482.20.00.00
Total Width1.1563 in (29.370 mm)
Mpn Variants3478/3420, 3478-3420, 3478 3420, 3478/20
Additional AttributesCone Width: 1.1721 in (29.771 mm); Cup Width: 0.9375 in (23.813 mm); Cone: 3478; Cup: 3420

Cross-References

Cross Reference 1Timken 3478/3420
Cross Reference 2NSK 3478/3420
Cross Reference 3NTN 4T-3478/3420
Cross Reference 4Koyo 3478/3420
Seller Part Number: AI3B2#T45SJ8

Product Description

What this part is

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).

Decoding the designation

3478 — cone in the ABMA 3400 inch series, 1.3750 in bore.

3420 — matching cup, 3.1250 in OD, 0.9375 in wide.

What these specs mean in practice

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.

Quantity and configuration

Unit Quantity: 1 set, cone and cup (2 pieces).

Interchange guidance

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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