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)
17118 - 17245D
17000
29.987 mm
61.999 mm
16.566 mm
36.259 mm
39.685 mm
11200 N
75300 N
15101 - 15251D
15000
25.400 mm
63.500 mm
20.638 mm
36.513 mm
46.035 mm
15500 N
104000 N
17098 - 17245D
17000
24.981 mm
61.999 mm
16.566 mm
36.259 mm
39.685 mm
11200 N
75300 N
15102 - 15251D
15000
25.400 mm
63.500 mm
20.638 mm
36.513 mm
46.035 mm
15500 N
104000 N
EE181453 - 182351D
180000
368.3 mm
596.9 mm
92.075 mm
133.350 mm
203.197 mm
460000 N
3090000 N
EE147112 - 147198DC
147000
285.750 mm
501.650 mm
88.900 mm
120.650 mm
203.200 mm
353000 N
2370000 N
15103 - 15251D
15000
26.157 mm
63.500 mm
20.638 mm
36.513 mm
46.035 mm
15500 N
104000 N
18685 - 18620D
18600
44.450 mm
79.375 mm
17.463 mm
33.338 mm
41.270 mm
13500 N
90600 N
15120 - 15251D
15000
30.213 mm
63.500 mm
20.638 mm
36.513 mm
46.035 mm
15500 N
104000 N
15106 - 15251D
15000
26.988 mm
63.500 mm
20.638 mm
36.513 mm
46.035 mm
15500 N
104000 N
18690 - 18620D
18600
46.038 mm
79.375 mm
17.463 mm
33.338 mm
41.270 mm
13500 N
90600 N
15118 - 15251D
15000
30.213 mm
63.500 mm
20.638 mm
36.513 mm
46.035 mm
15500 N
104000 N
15119 - 15251D
15000
30.213 mm
63.500 mm
20.638 mm
36.513 mm
46.035 mm
15500 N
104000 N
18690 - 18620DC
18600
46.038 mm
79.375 mm
17.463 mm
33.338 mm
41.270 mm
13500 N
90600 N
15112 - 15251D
15000
28.575 mm
63.500 mm
20.638 mm
36.513 mm
46.035 mm
15500 N
104000 N
EE153044 - 153103D
153000
120.650 mm
258.763 mm
82.550 mm
136.525 mm
177.800 mm
184000 N
1240000 N
18685 - 18620DC
18600
44.450 mm
79.375 mm
17.463 mm
33.338 mm
41.270 mm
13500 N
90600 N
15117 - 15251D
15000
29.987 mm
63.500 mm
20.638 mm
36.513 mm
46.035 mm
15500 N
104000 N
EE153050 - 153103D
153000
127 mm
258.763 mm
82.550 mm
136.525 mm
177.800 mm
184000 N
1240000 N
EE192148 - 192201CD
192000
377.825 mm
508.000 mm
58.738 mm
88.900 mm
139.700 mm
196000 N
1320000 N