Tapered Roller Bearings – TDO (Tapered Double Outer) Imperial

Tapered Roller Bearings Product Introduction

**TIMKEN Tapered Roller Bearings – TDO (Tapered Double Outer) Series: Superior Load Handling for Demanding Applications**

TIMKEN Tapered Roller Bearings are renowned for their exceptional durability, precision, and ability to manage combined radial and axial loads in high-performance industrial and automotive systems. Among TIMKEN’s extensive bearing portfolio, the **TDO (Tapered Double Outer) series**, including both metric (0) and imperial (2093) designs, stands out for its robust construction and versatility in heavy-load applications. These bearings are engineered to deliver unmatched reliability in environments where extreme forces, misalignment, or variable speeds are common.

### **Technical Features & Design Advantages**
The **TDO tapered roller bearings** feature a unique double outer ring and single inner ring configuration, enabling them to accommodate substantial radial and thrust loads in both directions. This design is particularly beneficial in applications where space constraints or shaft deflection might otherwise compromise performance. Key features include:

– **Optimized Load Distribution**: The tapered rollers are precision-ground to ensure even load sharing, reducing stress concentrations and extending service life.
– **Enhanced Rigidity**: The double-cup (outer ring) design increases stiffness, making these bearings ideal for applications with high moment loads or shaft misalignment.
– **Superior Lubrication Retention**: Advanced sealing options and optimized internal geometries help maintain consistent lubrication, even in harsh operating conditions.
– **Interchangeability & Standardization**: Available in both metric (0-series) and imperial (2093-series) sizes, TIMKEN TDO bearings are designed to replace competitor units seamlessly while offering improved performance.

### **Performance Benefits**
TIMKEN’s TDO tapered roller bearings excel in applications requiring high load capacity, shock resistance, and long-term reliability. Their ability to handle **combined axial and radial loads** makes them indispensable in heavy machinery, while their precision ensures smooth operation in high-speed scenarios. Additional advantages include:

– **Extended Bearing Life**: Advanced steel alloys and heat treatment processes enhance fatigue resistance, reducing downtime and maintenance costs.
– **Reduced Friction & Heat Generation**: Precision-engineered roller profiles minimize friction, improving efficiency and reducing energy consumption.
– **Versatility Across Industries**: Suitable for both slow, heavy-load applications (e.g., mining equipment) and high-speed operations (e.g., gearboxes).

### **Typical Applications**
TIMKEN TDO tapered roller bearings are widely used in industries where reliability under extreme conditions is critical. Common applications include:

– **Industrial Machinery**: Conveyor systems, crushers, and heavy-duty gearboxes requiring high radial and thrust load support.
– **Automotive & Transportation**: Wheel hubs, differential systems, and truck axles where durability and load management are essential.
– **Precision Equipment**: Machine tool spindles and rolling mills where alignment accuracy and minimal deflection are crucial.

For engineers and maintenance professionals seeking a robust, high-performance bearing solution, TIMKEN’s TDO series offers a proven combination of strength, precision, and longevity—ensuring optimal performance in the most demanding environments.

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Part Number Series d - Bore D - Cup Outer Diameter B - Cone Width C - Double Cup Width T - Bearing Width across Cones C90 - Dynamic Radial Rating (One-Row, 90 million revolutions) C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)
EE231400 - 232026D
230000
355.6 mm
514.350 mm
66.675 mm
107.950 mm
155.572 mm
273000 N
1830000 N
EE234160 - 234216DC
234000
406.400 mm
546.1 mm
61.120 mm
117.475 mm
158.747 mm
282000 N
1890000 N
EE243196 - 243251CD
243000
498.475 mm
634.873 mm
80.963 mm
142.875 mm
177.800 mm
380000 N
2560000 N
EE231462 - 232026D
230000
371.475 mm
514.350 mm
66.675 mm
107.950 mm
155.572 mm
273000 N
1830000 N
EE234154 - 234221D
234000
393.7 mm
558.800 mm
61.120 mm
104.775 mm
146.047 mm
282000 N
1890000 N
EE234156 - 234213CD
234000
396.875 mm
539.750 mm
61.120 mm
101.600 mm
142.872 mm
282000 N
1890000 N
EE234156W - 234221D
234000
396.875 mm
558.800 mm
61.120 mm
104.775 mm
146.047 mm
282000 N
1890000 N
EE234160W - 234213CD
234000
406.400 mm
539.750 mm
61.120 mm
101.600 mm
142.872 mm
282000 N
1890000 N
EE234160 - 234221D
234000
406.400 mm
558.800 mm
61.120 mm
104.775 mm
146.047 mm
282000 N
1890000 N
EE234160 - 234213CD
234000
406.400 mm
539.750 mm
61.120 mm
101.600 mm
142.872 mm
282000 N
1890000 N
EE234160W - 234221D
234000
406.400 mm
558.800 mm
61.120 mm
104.775 mm
146.047 mm
282000 N
1890000 N
EE234156W - 234213CD
234000
396.875 mm
539.750 mm
61.120 mm
101.600 mm
142.872 mm
282000 N
1890000 N
EE234156 - 234221D
234000
396.875 mm
558.800 mm
61.120 mm
104.775 mm
146.047 mm
282000 N
1890000 N
15120A - 15251D
15000
30.175 mm
63.500 mm
20.638 mm
36.513 mm
46.035 mm
15500 N
104000 N
EE161400 - 161901CD
160000
355.6 mm
482.600 mm
55.563 mm
88.900 mm
133.347 mm
163000 N
1090000 N
EE192155W - 192201CD
192000
377.825 mm
508.000 mm
58.738 mm
88.900 mm
139.700 mm
171000 N
1150000 N
15116 - 15251D
15000
30.112 mm
63.500 mm
20.638 mm
36.513 mm
46.035 mm
15500 N
104000 N
EE161300 - 161901CD
160000
330.200 mm
482.600 mm
55.563 mm
88.900 mm
133.347 mm
163000 N
1090000 N
EE192150 - 192201CD
192000
381.000 mm
508.000 mm
58.738 mm
88.900 mm
139.700 mm
196000 N
1320000 N
15115 - 15251D
15000
29.987 mm
63.500 mm
19.050 mm
36.513 mm
44.257 mm
15500 N
104000 N