Ball Bearings vs. Roller Bearings: Which One Does Your Application Actually Need?
Both ball bearings and roller bearings serve the same fundamental purpose: reducing friction, supporting loads,
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Timken 478W Tapered Roller Bearing Cone is a straight-bore, high-capacity component designed for heavy loads in automotive and industrial machinery. Made in the United States and offered as New Old Stock, this cone features a 2.5591 inch bore and a 1.1420 inch width, crafted from case carburized steel for lasting wear. An open seal and stamped steel cage deliver dependable, low-friction performance under demanding conditions. With a dynamic load rating of 156 kN and a static load rating of 186 kN, this cone pairs with related cups to form a robust tapered roller bearing assembly. It is ideal for completing Timken sets or installing compatible assemblies in equipment that requires the 478W specification. Cross references include SKF 478 and NTN 4T-478. Weighing approximately 2.06 pounds, the part ships from our United States inventory and is ready for installation in power transmission and bearing applications. The New Old Stock condition ensures factory reliability and long service life for restored or rebuilt machines.
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| MFR / Brand | Timken |
|---|---|
| MPN | 478W |
| Model | 478 W |
| Bearing Type | Tapered Roller Bearing Cone, Open |
| ID | 2.5591 in |
| Width | 1.1420 in |
| Advertise | 1 |
|---|---|
| Min Temp | -54 °C |
| Cage Type | Stamped |
| Dynamic Load Rating | 156 kN / 35100 lbf |
| Static Load Rating | 186 kN / 41900 lbf |
| Precision Rating | ABEC 1 / P0 |
| Series | 475 |
| Rolling Elements | Tapered Rollers |
| Max Temp | 120 °C |
| Condition | New – Open box |
| Item Weight | 2.06 lbs |
| Cage Material | Steel |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.20.00 |
| Material | Case Carburized Steel |
| Cross Reference 1 | SKF 478 |
|---|---|
| Cross Reference 2 | NTN 4T-478 |
| Cross Reference 3 | Bower 478 |
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