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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The Timken 48385-90012 Double Tapered Bearing Cone and Cup set features a 5-1/2″ inner diameter and 7-1/2″ outer diameter. Made in the United States, this high-quality tapered roller bearing cone is designed for industrial automation and motion control applications. With the renowned Timken brand name and specific model numbers 48385 and 48320-D, this bearing set guarantees reliable performance and durability in mechanical power transmission systems. Perfect for demanding industrial environments, this double tapered bearing cone and cup set is a valuable component for various machinery and equipment.
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| MFR / Brand | Timken |
|---|---|
| MPN | 48385-90012 |
| Model | 48385 / 48320-D / X1S-48385 |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 5.5000 in |
| OD | 7.5000 in |
| Advertise | 1 |
|---|---|
| Condition | New – Open box |
| Harmonization Code | 8482.20.00 |
| Cup Part Number | 48320D |
| Design Units | Imperial |
| Bearing Class | Class 2 |
| Bearing Material | Case-Carburized Steel |
| Cone Part Number | 48385 |
| Cone Width | 1.5000 in |
| Cone Backface To Clear Radius | 0.14 in |
| Cone Frontface Backing Diameter | 5.83 in |
| Effective Center Location | -0.22 in |
| Series | 48300 |
| Cage Type | Stamped Steel |
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When the original bearing is discontinued, not available or has a lengthy lead time, there
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