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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2 in stock
Timken 399A/394DC/X1S Double Taper Bearing Cone & Cup Upgrade your machinery’s performance with the Timken 399A/394DC/X1S Double Tapered Bearing Cone & Cup. Crafted with precision in the United States, this high-quality industrial component is an essential addition for those involved in mechanical power transmission and industrial automation. Featuring a bore diameter of 2-11/16 inches and an outer diameter of 4.331 inches, this tapered roller bearing cone is specifically designed to enhance the reliability and durability of your equipment. Timken’s reputation for excellence ensures that you are investing in a product that will withstand demanding applications. Whether you are a professional in the manufacturing industry or a hobbyist working on personal projects, the Timken 399A/394DC/X1S is an ideal choice to ensure smooth operation in your machinery. Its open box condition offers you the assurance of new-quality parts at a competitive price, making it a smart procurement choice. Do not compromise on quality; choose Timken for superior performance and longevity in your applications.
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| MFR / Brand | Timken |
|---|---|
| MPN | 399A/394DC/X1S |
| Model | 399 A / 394 DC / X1S-399A |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 2-11/16 in |
| OD | 4.3307 in |
| Advertise | 1 |
|---|---|
| Condition | New – Open box |
| Harmonization Code | 8482.20.00 |
| Cup Part Number | 394DC |
| Design Units | Imperial |
| Bearing Class | Class 2 |
| Bearing Material | Case-Carburized Steel |
| Cup Width | 1.5000 in |
| Cup Backface To Clear Radius | 0.03 in |
| Cone Part Number | 399A |
| Cone Width | 0.8660 in |
| Cone Backface To Clear Radius | 0.06 in |
| Cone Frontface Backing Diameter | 2.87 in |
| Cup Frontface Backing Diameter | 4.13 in |
| Effective Center Location | -0.03 in |
| Series | 395 |
| Cage Type | Stamped Steel |
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