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 product is a double tapered roller bearing cone and cup set with a 4″ inner diameter and 7-1/8″ outer diameter, designed by the reputable brand Timken in the United States. The NA 780 / 774 D model is specifically crafted for industrial applications requiring reliable and high-quality bearings. This product is essential for mechanical power transmission and industrial automation systems, ensuring smooth and efficient operation.
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| MFR / Brand | Timken |
|---|---|
| MPN | NA780/774D |
| Model | NA 780 / 774 D |
| Bearing Type | Tapered Roller Bearing Cone, Open |
| ID | 4.0000 in |
| OD | 7.1250 in |
| Width | 4.2500 in |
| Advertise | 1 |
|---|---|
| Min Temp | -54 °C |
| Cage Type | Stamped |
| Dynamic Load Rating | 179 kN / 40200 lbf |
| Static Load Rating | 320 kN / 71900 lbf |
| Precision Rating | ABEC 1 / P0 |
| Series | 700 |
| Rolling Elements | Tapered Rollers |
| Max Temp | 120 °C |
| Condition | New – Open box |
| Item Weight | 18.5 lbs |
| Cage Material | Steel |
| Number Of Rows | 2 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.20.00 |
| Material | Case Carburized Steel |
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When the original bearing is discontinued, not available or has a lengthy lead time, there
Our team can locate, cross-reference, and source all parts.
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