Part Number | A-3783-B |
System of Measurement | Inch |
Type | Bearing |
Bearing Type | Roller |
Roller Bearing Type | Tapered |
For Load Direction | Thrust |
Configuration | Thrust TTHD – with cage, but no roller smaller-end ribs |
Seal Type | Open |
Series | TTHD |
Bore Dia | 7.4803″ |
Bore Dia Tolerance | +0.001″ to 0 |
Outer Dia | 14″ |
Outer Dia Tolerance | +0.001″ to 0 |
Width | 3.615″ |
Width Tolerance | +0.0150″ to -0.0150 |
Fillet Radius Shaft | 0.16″ |
Fillet Radius Housing | 0.16″ |
Ring Material | Chrome Steel |
Roller Material | Chrome Steel |
Cage Material | Steel |
Dynamic Thrust Load | 139000 lbf |
Static Thrust Load | 1960000 lbf |
Lubrication | Required |
Temperature Range | -30° to 110 °C |
ABEC Rating | ABEC-1 |
RoHS | Compliant |
REACH | Compliant |
Weight | 49kg |

A-3783-B
Design Features of A-3783-B Bearing
A-3783-B bearing features a tapered roller design with a high load capacity, allowing it to effectively handle both radial and axial loads. A-3783-B outer dia is 14″. Its bore dia is 7.4803″. Its robust construction and precise geometry ensure stability and durability, making it suitable for heavy-duty applications.
What Benefits Can A-3783-B Bearing Provide?
- High Load Capacity: It effectively supports heavy radial and axial loads, making it suitable for demanding applications.
- Enhanced Durability: Its robust design and materials ensure a longer lifespan and reduced maintenance needs.
- Improved Stability: The tapered roller design provides excellent stability and minimizes deflection under load.
- Precision Performance: It offers precise alignment and smooth operation, enhancing overall machinery efficiency.
What Can A-3783-B Bearing Be Used for?
- Heavy Machinery: Ideal for construction equipment like excavators, bulldozers, and cranes, where high load capacity is essential.
- Automotive: Commonly found in wheel hubs, transmissions, and differentials, supporting heavy loads and ensuring smooth operation.
- Industrial Equipment: Used in gearboxes, conveyor systems, and other machinery that requires reliability and stability.
- Mining Equipment: Suitable for harsh environments, providing durability and performance under extreme conditions.
- Agricultural Machinery: Utilized in tractors and harvesters to handle heavy-duty applications.