Part Number | M667949DXX-M667911 |
System of Measurement | Inch |
Type | Bearing |
Cone Part Number | M667949DXX |
Cup Part Number | M667911 |
Bearing Type | Roller |
Roller Bearing Type | Tapered |
For Load Direction | Combined |
Construction | Double Row |
Seal Type | Open |
Cups Type | Standard |
Series | M667900 |
Bore Dia | 16.125″ |
Bore Dia Tolerance | +0.002″ to 0 |
Outer Dia | 21.5″ |
Outer Dia Tolerance | +0.002″ to 0 |
Double Cone Width | 6.375″ |
Double Cone Width Tolerance | +0.003″ to -0.01 |
Cup Width | 2.6875″ |
Cup Width Tolerance | +0.002″ to -0.01 |
Bearing Width Across Cups | 6.3749″ |
Bearing Width Across Cups Tolerance | +0.015″ to -0.015″ |
Cone Backface ToClear Radius | 0.06″ |
Cup Backface ToClear Radius | 0.25″ |
Cup Frontface Backing Diameter | 16.97″ |
Cup Backface Backing Diameter | 20.08″ |
Dynamic Radial Load | 731000 lbf |
Ring Material | Chrome Steel |
Roller Material | Chrome Steel |
Cage Material | Pin-Type |
Dynamic Radial Rating(One Row 90 Million Revolutions) | 109000 lbf |
Dynamic Thrust Rating(90 Million Revolutions) | 77800 lbf |
Dynamic Radial Rating(Two Row 90 Million Revolutions) | 190000 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 | 232.50 lb |

M667949DXX-M667911
Design Features of M667949DXX-M667911 Bearing
M667949DXX-M667911 features a dual row configuration and a double inner race design, providing increased load-carrying capacity and stability for heavy-duty applications. M667949DXX-M667911 outer dia is 21.5″. Its bore dia is 16.125″. Designed for easy installation and enhanced performance, it is available in imperial sizes and often includes sealing options to protect against contaminants and reduce maintenance needs.
What Benefits Can M667949DXX-M667911 Bearing Provide?
- Increased Load Capacity: The dual row design allows for a higher load-carrying capacity, making it suitable for heavy-duty applications where substantial forces are present.
- Enhanced Stability: With two rows of rolling elements, a TDI bearing offers improved stability and resistance to misalignment, which is crucial in maintaining accurate performance in machinery.
- Reduced Friction: The design promotes smoother operation, reducing friction between components, which leads to improved efficiency and a longer service life.
- Versatile Application: A TDI bearing is versatile and can accommodate both radial and axial loads, making it suitable for a wide range of industrial and automotive applications.
- Sealing Options: Many TDI bearings come with seals or shields, providing protection against contaminants and retaining lubrication, which minimizes maintenance requirements.
- Easy Installation: The design allows for straightforward installation, often featuring tapered bores or adapter sleeves that simplify mounting on shafts.
What Can M667949DXX-M667911 Bearing Be Used for?
- Industrial Machinery: It is commonly utilized in heavy-duty equipment, such as gearboxes and conveyors, where high load capacity and stability are required.
- Automotive Applications: A TDI bearing is often found in automotive components like differential assemblies and wheel hubs, providing reliable support and smooth operation under demanding conditions.
- Double Row Equipment: It is used in construction machinery, such as excavators and cranes, where robust performance and durability are essential for handling heavy loads.
- Mining Equipment: In the mining industry, a TDI bearing is suitable for applications that endure harsh environments and significant stresses, such as in crushers and shakers.
- Railway Systems: It can be employed in railway wheel assemblies and traction systems, ensuring reliable operation and load management.