This is a package of 2 NTN Bower 3780/3720 tapered roller bearing assemblies. Each set includes a 3780 inner cone and a 3720 outer cup with a 2-inch bore diameter and 3-21/32-inch outer diameter.
We have inspected this item and we do not have the capability to install the unit to fully test it. It appears to be in original packaging. Outer packaging boxes show minor shelf and storage wear.
Please refer to the photos for more information.
This unit only includes what is photographed in the listing.
Made in USA.
Technical Specs
| Item | Tapered Roller Bearing Assembly |
| Manufacturer Part Number | 3780/3720 |
| Bore Diameter | 2 in |
| Bore Diameter Tolerance | 0.0000/+0.0005 in |
| Outside Diameter | 3-21/32 in |
| Overall Width | 1.187 in |
| Cone Width | 1.193 in |
| Cup Width | 0.937 in |
| Bore Type | Cylindrical |
| Ring Material | Carbon Steel |
| Ring Material Grade | Case Carburized Grade Steel |
| Cage Material | Pressed Steel |
| Roller Material | Carbon Steel |
| Roller Material Grade | Case Carburized Grade Steel |
| Number of Rows | One |
| Dynamic Radial Load Capacity | 24,500 lbf |
| Static Radial Load Capacity | 33,500 lbf |
| Lubrication Openings | None |
| Flange Type | Non-Flanged |
| Housing Fillet Radius | 0.13 in |
| Shaft Fillet Radius | 0.14 in |
| Maximum Temperature | 250 °F |
| Minimum Temperature | -40 °F |
| ABMA Rating | Class 4 |
| Application | Forestry; Machinery; Mining; Various |
| Country of Origin | USA |
| Quantity | 2 Sets (2 Cones, 2 Cups) |