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)
M270730 - M270710CD
M270700
409.575 mm
635.000 mm
120.650 mm
206.375 mm
257.175 mm
849000 N
5700000 N
M241547 - M241513D
M241500
203.2 mm
301.625 mm
57.945 mm
140.005 mm
125.453 mm
156000 N
1040000 N
M252337WS - M252310CD
M252300
247.650 mm
381.000 mm
74.613 mm
123.825 mm
158.747 mm
326000 N
2190000 N
M272749 - M272710D
M272700
479.425 mm
679.450 mm
128.588 mm
222.250 mm
276.222 mm
968000 N
6500000 N
M241547A - M241513D
M241500
203.2 mm
301.625 mm
57.945 mm
140.005 mm
125.453 mm
165000 N
1110000 N
M252349HWS - M252310CD
M252300
269.875 mm
381.000 mm
74.613 mm
123.825 mm
158.747 mm
326000 N
2190000 N
M276449 - M276410D
M276400
536.575 mm
761.873 mm
146.050 mm
247.650 mm
311.150 mm
1040000 N
6980000 N
M241547C - M241513D
M241500
203.2 mm
301.625 mm
57.945 mm
140.005 mm
125.453 mm
178000 N
1200000 N
M252349 - M252310CD
M252300
269.875 mm
381.000 mm
74.613 mm
123.825 mm
158.747 mm
298000 N
2000000 N
M276449 - M276410DC
M276400
536.575 mm
761.873 mm
146.050 mm
247.650 mm
311.150 mm
1040000 N
6980000 N
M241545 - M241513XD
M241500
200.812 mm
301.625 mm
61.913 mm
140.005 mm
125.453 mm
145000 N
975000 N
M252337 - M252310CD
M252300
247.650 mm
381.000 mm
74.613 mm
123.825 mm
158.747 mm
298000 N
2000000 N
M278749 - M278710D
M278700
571.500 mm
812.800 mm
155.575 mm
263.525 mm
333.372 mm
1180000 N
7890000 N
M241549 - M241513XD
M241500
204.788 mm
301.625 mm
57.945 mm
140.005 mm
125.453 mm
156000 N
1040000 N
M252330X - M252310CD
M252300
234.95 mm
381.000 mm
74.613 mm
123.825 mm
158.747 mm
326000 N
2190000 N
M541349 - M541310CD
M541300
203.2 mm
292.100 mm
49.213 mm
84.138 mm
109.535 mm
174000 N
1170000 N
M241547V - M241513XD
M241500
203.2 mm
301.625 mm
57.945 mm
140.005 mm
125.453 mm
195000 N
1310000 N
M252330 - M252310CD
M252300
234.95 mm
381.000 mm
74.613 mm
123.825 mm
158.747 mm
326000 N
2190000 N
M667944 - M667910D
M667900
406.400 mm
546.1 mm
87.313 mm
144.463 mm
185.735 mm
484000 N
3250000 N
M241547A - M241513XD
M241500
203.2 mm
301.625 mm
57.945 mm
140.005 mm
125.453 mm
165000 N
1110000 N