Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
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Matched single-row tapered roller bearing set: 359A cone plus 354A cup. Bore 1-13/16 in, outside diameter 3.347 in. Sold as 1 Pc (one cone and one cup).
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Here are some other options that might fit your project — cross-referenced equivalents and similar parts we have in stock and ready to ship. Need help choosing? Call 585-295-7880.
Tapered Roller Bearing Cone - 1-5/8 in Bore, 1.2160 in Width, Case-Hardened Steel$34.97
Tapered Roller Bearing Cone — 1-5/8 in Bore, 1.1142 in Cone Width, Class 3 Precision$40.64
Single-Row Imperial Tapered Roller Bearing Cone – 3 in Bore, 1.172 in Width, K Factor 1.31$40.79
Tapered Roller Bearing Cone – 3.7500 in Bore, 1.4219 in Width, 223,000 N Dynamic Rating$53.09| MFR / Brand | Timken |
|---|---|
| MPN | 359A/354A |
| Model | 359 A / 354 A |
| Bearing Type | Tapered Roller Bearing Cone, Open |
| ID | 1.6250 in |
| OD | 3.3465 in |
| Width | 0.8125 in |
| Material | Case Carburized Steel |
|---|---|
| Base Number | 359A/354A |
| Industry Terms | Taper bearing set, cone and cup, matched taper roller set |
| Common Misspellings | 359/354A, 359A-354, 359 A 354 A |
| Application Types | Gearboxes, pinion shafts, agricultural drives, industrial shafting |
| Bore Shaft Size | 1-13/16 in (46.04 mm) |
| Mpn Variants | 359A/354A, 359-A/354-A, 359A 354A, 359A, 354A, 359A/354AB |
| Compatible With Replaces | Cone 359A mates with cup 354A |
| Arrangement Configuration | Matched cone and cup set, single row |
| Min Temp | -54°C |
| Cage Type | Steel |
| Dynamic Load Rating | 79 kN |
| Static Load Rating | 94 kN |
| Precision Rating | Class 2 / Class 0 |
| Rolling Elements | Tapered Rollers |
| Max Temp | 120°C |
| Item Weight | 1.34 lbs |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Design Units | Inch |
| Bearing Material | Case-carburised bearing steel |
| Part Number | 359A/354A |
| Limiting Speed | 5800 rpm |
| Cross Reference 1 | Koyo 359A/354A |
|---|---|
| Cross Reference 2 | NTN 359A/354A |
A Timken 359A/354A matched single-row tapered roller bearing set — the 359A cone (inner ring with tapered rollers and cage) together with its 354A cup (outer race). Bore 1-13/16 in, outside diameter 3.347 in.
359A and 354A are the cone and cup halves of one lapped inch set. The A suffix on each number denotes a Timken design revision of the base 359 and 354 sections; the revised halves are used together as a pair.
Cone and cup raceways are lapped as a set at manufacture, so the pair carries the matched roller path and the published endplay range. A single-row tapered roller bearing takes radial load together with thrust in one direction, reacted through the cup back face, which is why the position is normally built as an opposed pair.
Bearing type: tapered roller bearing, cone and cup setDesign units: inchBore: 1-13/16 in (46.04 mm)Outside diameter: 3.347 in (85.00 mm)Number of rows: 1Bore type: straightClosure: openCone number: 359ACup number: 354A
Complete single-row set: one 359A cone and one 354A cup. Sold as 1 Pc.
The cone is an interference fit on the journal against a square shoulder and the cup presses into the housing bore; endplay or preload is set at assembly against the opposed bearing.
The base 359/354 halves share the envelope but predate the A revision, which makes them a related size rather than a proven interchange for this pair.
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