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)
13686 - 13621D
13600
38.1 mm
69.012 mm
26.195 mm
38.100 mm
60.322 mm
17400 N
117000 N
14118 - 14276D
14000
30 mm
69.012 mm
19.202 mm
38.100 mm
46.040 mm
14200 N
95100 N
13685 - 13621DC
13600
38.1 mm
69.012 mm
19.050 mm
38.100 mm
46.032 mm
17400 N
117000 N
14117A - 14276D
14000
30 mm
69.012 mm
19.583 mm
38.100 mm
46.040 mm
14200 N
95100 N
13682 - 13621DC
13600
36.513 mm
69.012 mm
19.050 mm
38.100 mm
46.032 mm
17400 N
117000 N
14116W - 14276D
14000
30.226 mm
69.012 mm
19.583 mm
38.100 mm
46.040 mm
14200 N
95100 N
13889 - 13835D
13800
38.1 mm
63.500 mm
11.908 mm
31.750 mm
38.100 mm
7040 N
47300 N
14116 - 14276D
14000
30.226 mm
69.012 mm
19.583 mm
38.100 mm
46.040 mm
14200 N
95100 N
13890 - 13835D
13800
38.481 mm
63.500 mm
11.908 mm
31.750 mm
38.100 mm
7040 N
47300 N
14136AA - 14276D
14000
34.925 mm
69.012 mm
26.721 mm
38.100 mm
60.315 mm
14200 N
95100 N
14131A - 14276D
14000
33.338 mm
69.012 mm
19.583 mm
38.100 mm
46.040 mm
14200 N
95100 N
14123A - 14276D
14000
31.750 mm
69.012 mm
26.721 mm
38.100 mm
60.315 mm
14200 N
95100 N
EE132084 - 132126D
132000
206.375 mm
317.500 mm
53.975 mm
88.900 mm
127 mm
137000 N
919000 N
14125A - 14276D
14000
31.750 mm
69.012 mm
19.583 mm
38.100 mm
46.040 mm
14200 N
95100 N
14121 - 14276D
14000
30.226 mm
69.012 mm
25.933 mm
38.100 mm
58.740 mm
14200 N
95100 N
EE132083 - 132126D
132000
203.2 mm
317.500 mm
53.975 mm
88.900 mm
127 mm
145000 N
973000 N
14130 - 14276D
14000
33.338 mm
69.012 mm
19.583 mm
38.100 mm
46.040 mm
14200 N
95100 N
14137AS - 14276D
14000
34.925 mm
69.012 mm
19.583 mm
38.100 mm
46.040 mm
14200 N
95100 N
EE132084 - 132126DC
132000
206.375 mm
317.500 mm
53.975 mm
88.900 mm
127 mm
137000 N
919000 N
14124 - 14276D
14000
31.750 mm
69.012 mm
19.583 mm
38.100 mm
46.040 mm
14200 N
95100 N