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)
EE295102 - 295192CD
295000
260.350 mm
488.950 mm
120.650 mm
196.850 mm
254.000 mm
628000 N
4220000 N
EE295110 - 295192CD
295000
279.4 mm
488.950 mm
120.650 mm
196.850 mm
254.000 mm
628000 N
4220000 N
EE328167 - 328268D
328000
425.450 mm
685.698 mm
142.799 mm
234.950 mm
311.150 mm
812000 N
5450000 N
EE426200 - 426331CD
426000
508 mm
838.200 mm
139.700 mm
222.250 mm
304.800 mm
936000 N
6290000 N
EE571602 - 572651D
570000
406.400 mm
673.100 mm
87.833 mm
127.000 mm
192.639 mm
528000 N
3540000 N
EE571703 - 572651D
570000
431.800 mm
673.100 mm
87.833 mm
127.000 mm
192.639 mm
528000 N
3540000 N
EE571703 - 572653D
570000
431.800 mm
673.100 mm
87.833 mm
152.400 mm
192.639 mm
528000 N
3540000 N
EE571703 - 572651CD
570000
431.800 mm
673.100 mm
87.833 mm
127.000 mm
192.639 mm
528000 N
3540000 N
EE640192 - 640262D
640000
488.950 mm
666.674 mm
94.458 mm
158.750 mm
206.375 mm
614000 N
4130000 N
EE649237 - 649311CD
649000
602.945 mm
787.4 mm
93.663 mm
158.750 mm
206.375 mm
677000 N
4550000 N
EE649239 - 649311CD
649000
607.720 mm
787.4 mm
93.663 mm
158.750 mm
206.375 mm
677000 N
4550000 N
EE655270 - 655346CD
655000
685.8 mm
876.300 mm
92.075 mm
152.400 mm
200.025 mm
714000 N
4790000 N
EE662303 - 663551CD
660000
584.200 mm
901.700 mm
139.700 mm
214.313 mm
298.453 mm
1290000 N
8670000 N
EE737173 - 737261CD
737000
441.325 mm
660.400 mm
85.725 mm
138.113 mm
195.262 mm
457000 N
3070000 N
EE737181 - 737261CD
737000
457.200 mm
660.400 mm
85.725 mm
138.113 mm
195.262 mm
457000 N
3070000 N
EE737181 - 737261D
737000
457.200 mm
660.400 mm
85.725 mm
138.113 mm
195.262 mm
457000 N
3070000 N
EE743240 - 743321CD
743000
609.600 mm
812.800 mm
82.550 mm
146.050 mm
190.500 mm
538000 N
3610000 N
EE749260 - 749335CD
749000
660.400 mm
854.923 mm
85.468 mm
135.900 mm
186.329 mm
581000 N
3900000 N
EE822100 - 822176CD
822000
254 mm
444.5 mm
73.025 mm
114.300 mm
165.100 mm
305000 N
2050000 N
EE833160X - 833233D
833000
406.400 mm
590.550 mm
107.950 mm
174.625 mm
228.600 mm
598000 N
4020000 N
EE843220 - 843292D
843000
558.8 mm
742.950 mm
88.108 mm
138.113 mm
187.328 mm
536000 N
3600000 N
EE843220 - 843291CD
843000
558.8 mm
736.600 mm
88.108 mm
138.113 mm
187.328 mm
536000 N
3600000 N
EE911600 - 912401D
910000
406.400 mm
609.600 mm
84.138 mm
123.825 mm
187.325 mm
477000 N
3210000 N
EE911618 - 912401D
910000
411.163 mm
609.600 mm
84.138 mm
123.825 mm
187.325 mm
477000 N
3210000 N