Part Number | 330886 B |
System of Measurement | Metric |
Type | Bearing |
Bearing Type | Roller |
Roller Bearing Type | Tapered |
For Load Direction | Combined |
Construction | Four-Row |
Seal Type | Open |
Bore Dia | 479.425 mm |
Bore Dia Tolerance | -0.045mm to 0 |
Outer Dia | 679.45 mm |
Outer Dia Tolerance | -0.075mm to 0 |
Total Bearing Width Over Inner Rings | 495.3 mm |
Total Bearing Width Over Inner Rings Tolerance | -0.25mm to 0 |
Total Bearing Width Over Outer Rings | 495.3 mm |
Total Bearing Width Over Outer Rings Tolerance | +0.4mm to -0.4mm |
Abutment Diameter Shaft | 514 mm |
Abutment Diameter Housing | 514 mm |
Chamfer Dimension Inner Ring | min.6.4 mm |
Ring Material | Chrome Steel |
Roller Material | Chrome Steel |
Cage Material | Steel |
Dynamic Radial Load | 2103750 lbf |
Static Radial Load | 5062500 lbf |
Fatigue Load Limit | 411750 lbf |
Comparative Radial Load Rating | 562500 lbf |
Comparative Axial Load Rating | 92025 lbf |
Lubrication | Required |
Temperature Range | -30° to 110 °C |
ABEC Rating | ABEC-1 |
Radial Clearance | Standard (Available in C3/C4/C5) |
RoHS | Compliant |
REACH | Compliant |
Weight | 1333.80 lb |

330886 B
Design Features of 330886 B Bearing
330886 B is designed to handle heavy radial and axial loads simultaneously, making it ideal for high-load applications. 330886 B outer dia is 679.45 mm. Its bore dia is 479.425 mm. Its structure allows for excellent load distribution and increased rigidity, ensuring reliable performance in demanding environments such as rolling mills.
What Benefits Can 330886 B Bearing Provide?
- High Load Capacity: It can support heavy radial and axial loads, making it suitable for demanding applications such as heavy machinery and rolling mills.
- Improved Durability: Its robust design ensures even load distribution, reducing wear and extending the bearing’s service life.
- Enhanced Rigidity: The four-row configuration increases the overall rigidity of the bearing, improving stability in high-load environments.
- Efficient Operation: It reduces friction and heat generation, allowing for smoother operation and improved energy efficiency in large industrial machines.
What Can 330886 B Bearing Be Used for?
- Rolling Mills: Essential for supporting large radial and axial loads in steel, aluminum, and other metal rolling operations.
- Heavy Machinery: Used in construction and mining equipment where high load-bearing capacity and durability are required.
- Gearboxes: Provides reliable support in high-torque, heavy-load systems.
- Railway Axles: Ensures smooth and stable operation under heavy loads in rail transport.
- Wind Turbines: Applied in turbine rotor shafts for high load capacity and long-lasting performance.